색상 밝기 조정 함수

php 로 색상의 밝기 조정하는 함수입니다.

#ads_1

<?php
function changeBrightness ($hex, $adjust){

$red = hexdec( $hex[0] . $hex[1] );
$green = hexdec( $hex[2] . $hex[3] );
$blue = hexdec( $hex[4] . $hex[5] );

$db = $adjust / 255;

$red = (int)($red * $db);
$green = (int)($green * $db);
$blue = (int)($blue * $db);

return str_pad( dechex( $red ), 2, '0', 0 )
. str_pad( dechex( $green ), 2, '0', 0 )
. str_pad( dechex( $blue ), 2, '0', 0 );
}

function step($color){
for($i=255;$i>=0;$i-=5){
$c = changeBrightness($color, $i);
echo '<div style="width:100px;height:100px;background-color:#'.$c.'"><span style="color:#fff">step:'.$i.'<br>#'.$c.'</span></div>';
}
}
?>

#ads_2

<<결과>>

step:255
#ff0000

step:250
#fa0000

step:245
#f50000

step:240
#f00000

step:235
#eb0000

step:230
#e60000

step:225
#e10000

step:220
#dc0000

step:215
#d70000

step:210
#d20000

step:205
#cd0000

step:200
#c80000

step:195
#c30000

step:190
#be0000

step:185
#b90000

step:180
#b40000

step:175
#af0000

step:170
#aa0000

step:165
#a50000

step:160
#a00000

step:155
#9b0000

step:150
#960000

step:145
#910000

step:140
#8c0000

step:135
#870000

step:130
#820000

step:125
#7d0000

step:120
#780000

step:115
#730000

step:110
#6e0000

step:105
#690000

step:100
#640000

step:95
#5f0000

step:90
#5a0000

step:85
#550000

step:80
#500000

step:75
#4b0000

step:70
#460000

step:65
#410000

step:60
#3c0000

step:55
#370000

step:50
#320000

step:45
#2d0000

step:40
#280000

step:35
#230000

step:30
#1e0000

step:25
#190000

step:20
#140000

step:15
#0f0000

step:10
#0a0000

step:5
#050000

step:0
#000000

step:255
#00ff00

step:250
#00fa00

step:245
#00f500

step:240
#00f000

step:235
#00eb00

step:230
#00e600

step:225
#00e100

step:220
#00dc00

step:215
#00d700

step:210
#00d200

step:205
#00cd00

step:200
#00c800

step:195
#00c300

step:190
#00be00

step:185
#00b900

step:180
#00b400

step:175
#00af00

step:170
#00aa00

step:165
#00a500

step:160
#00a000

step:155
#009b00

step:150
#009600

step:145
#009100

step:140
#008c00

step:135
#008700

step:130
#008200

step:125
#007d00

step:120
#007800

step:115
#007300

step:110
#006e00

step:105
#006900

step:100
#006400

step:95
#005f00

step:90
#005a00

step:85
#005500

step:80
#005000

step:75
#004b00

step:70
#004600

step:65
#004100

step:60
#003c00

step:55
#003700

step:50
#003200

step:45
#002d00

step:40
#002800

step:35
#002300

step:30
#001e00

step:25
#001900

step:20
#001400

step:15
#000f00

step:10
#000a00

step:5
#000500

step:0
#000000

step:255
#0000ff

step:250
#0000fa

step:245
#0000f5

step:240
#0000f0

step:235
#0000eb

step:230
#0000e6

step:225
#0000e1

step:220
#0000dc

step:215
#0000d7

step:210
#0000d2

step:205
#0000cd

step:200
#0000c8

step:195
#0000c3

step:190
#0000be

step:185
#0000b9

step:180
#0000b4

step:175
#0000af

step:170
#0000aa

step:165
#0000a5

step:160
#0000a0

step:155
#00009b

step:150
#000096

step:145
#000091

step:140
#00008c

step:135
#000087

step:130
#000082

step:125
#00007d

step:120
#000078

step:115
#000073

step:110
#00006e

step:105
#000069

step:100
#000064

step:95
#00005f

step:90
#00005a

step:85
#000055

step:80
#000050

step:75
#00004b

step:70
#000046

step:65
#000041

step:60
#00003c

step:55
#000037

step:50
#000032

step:45
#00002d

step:40
#000028

step:35
#000023

step:30
#00001e

step:25
#000019

step:20
#000014

step:15
#00000f

step:10
#00000a

step:5
#000005

step:0
#000000

step:255
#8080ff

step:250
#7d7dfa

step:245
#7a7af5

step:240
#7878f0

step:235
#7575eb

step:230
#7373e6

step:225
#7070e1

step:220
#6e6edc

step:215
#6b6bd7

step:210
#6969d2

step:205
#6666cd

step:200
#6464c8

step:195
#6161c3

step:190
#5f5fbe

step:185
#5c5cb9

step:180
#5a5ab4

step:175
#5757af

step:170
#5555aa

step:165
#5252a5

step:160
#5050a0

step:155
#4d4d9b

step:150
#4b4b96

step:145
#484891

step:140
#46468c

step:135
#434387

step:130
#414182

step:125
#3e3e7d

step:120
#3c3c78

step:115
#393973

step:110
#37376e

step:105
#343469

step:100
#323264

step:95
#2f2f5f

step:90
#2d2d5a

step:85
#2a2a55

step:80
#282850

step:75
#25254b

step:70
#232346

step:65
#202041

step:60
#1e1e3c

step:55
#1b1b37

step:50
#191932

step:45
#16162d

step:40
#141428

step:35
#111123

step:30
#0f0f1e

step:25
#0c0c19

step:20
#0a0a14

step:15
#07070f

step:10
#05050a

step:5
#020205

step:0
#000000

step:255
#ff8000

step:250
#fa7d00

step:245
#f57a00

step:240
#f07800

step:235
#eb7500

step:230
#e67300

step:225
#e17000

step:220
#dc6e00

step:215
#d76b00

step:210
#d26900

step:205
#cd6600

step:200
#c86400

step:195
#c36100

step:190
#be5f00

step:185
#b95c00

step:180
#b45a00

step:175
#af5700

step:170
#aa5500

step:165
#a55200

step:160
#a05000

step:155
#9b4d00

step:150
#964b00

step:145
#914800

step:140
#8c4600

step:135
#874300

step:130
#824100

step:125
#7d3e00

step:120
#783c00

step:115
#733900

step:110
#6e3700

step:105
#693400

step:100
#643200

step:95
#5f2f00

step:90
#5a2d00

step:85
#552a00

step:80
#502800

step:75
#4b2500

step:70
#462300

step:65
#412000

step:60
#3c1e00

step:55
#371b00

step:50
#321900

step:45
#2d1600

step:40
#281400

step:35
#231100

step:30
#1e0f00

step:25
#190c00

step:20
#140a00

step:15
#0f0700

step:10
#0a0500

step:5
#050200

step:0
#000000

step:255
#ff80ff

step:250
#fa7dfa

step:245
#f57af5

step:240
#f078f0

step:235
#eb75eb

step:230
#e673e6

step:225
#e170e1

step:220
#dc6edc

step:215
#d76bd7

step:210
#d269d2

step:205
#cd66cd

step:200
#c864c8

step:195
#c361c3

step:190
#be5fbe

step:185
#b95cb9

step:180
#b45ab4

step:175
#af57af

step:170
#aa55aa

step:165
#a552a5

step:160
#a050a0

step:155
#9b4d9b

step:150
#964b96

step:145
#914891

step:140
#8c468c

step:135
#874387

step:130
#824182

step:125
#7d3e7d

step:120
#783c78

step:115
#733973

step:110
#6e376e

step:105
#693469

step:100
#643264

step:95
#5f2f5f

step:90
#5a2d5a

step:85
#552a55

step:80
#502850

step:75
#4b254b

step:70
#462346

step:65
#412041

step:60
#3c1e3c

step:55
#371b37

step:50
#321932

step:45
#2d162d

step:40
#281428

step:35
#231123

step:30
#1e0f1e

step:25
#190c19

step:20
#140a14

step:15
#0f070f

step:10
#0a050a

step:5
#050205

step:0
#000000

step:255
#0000a0

step:250
#00009c

step:245
#000099

step:240
#000096

step:235
#000093

step:230
#000090

step:225
#00008d

step:220
#00008a

step:215
#000086

step:210
#000083

step:205
#000080

step:200
#00007d

step:195
#00007a

step:190
#000077

step:185
#000074

step:180
#000070

step:175
#00006d

step:170
#00006a

step:165
#000067

step:160
#000064

step:155
#000061

step:150
#00005e

step:145
#00005a

step:140
#000057

step:135
#000054

step:130
#000051

step:125
#00004e

step:120
#00004b

step:115
#000048

step:110
#000045

step:105
#000041

step:100
#00003e

step:95
#00003b

step:90
#000038

step:85
#000035

step:80
#000032

step:75
#00002f

step:70
#00002b

step:65
#000028

step:60
#000025

step:55
#000022

step:50
#00001f

step:45
#00001c

step:40
#000019

step:35
#000015

step:30
#000012

step:25
#00000f

step:20
#00000c

step:15
#000009

step:10
#000006

step:5
#000003

step:0
#000000

#ads_3

플밍

색상 밝기 조정 함수

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색상 밝기 조정 함수

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