#ACB638#ACB638

#ACB638 is a light, vivid yellow. Relative luminance 0.425; OKLCH L 74.5% C 0.146 H 113.9°. Best body text is #000000 at 9.50:1 contrast (WCAG AA passes).

Color values

HEX	#ACB638
RGB	rgb(172, 182, 56)
HSL	hsl(65, 53%, 47%)
HSV	hsv(65, 69%, 71%)
CMYK	cmyk(5.5%, 0%, 69.2%, 28.6%)
CIE-LAB	lab(71.22, -19.45, 59.76)
CIE-LCH	lch(71.22, 62.84, 108.03°)
OKLab	oklab(74.52% -0.0591 0.1336)
OKLCH	oklch(74.52% 0.146 113.9)
XYZ	xyz(34.4560, 42.5127, 10.1313)
Luminance	0.4251 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ACB638 #4238B6

analogous

#B68138 #ACB638 #6DB638

triadic

#ACB638 #38ACB6 #B638AC

tetradic

#ACB638 #38B681 #4238B6 #B6386D

square

#ACB638 #38B681 #4238B6 #B6386D

split-complementary

#ACB638 #386DB6 #8138B6

monochromatic

#54581B #80872A #ACB638 #C5CD5E #D6DC8D

Accessibility & contrast

On white

2.21

#ACB638 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.50

#ACB638 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ACB638

9.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ACB638	#FFFFFF	#000000	##000000
##ACB638	1.00	2.21	9.50	9.50
#FFFFFF	2.21	1.00	21.00	21.00
#000000	9.50	21.00	1.00	1.00
##000000	9.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C3AD24

Deuteranopia (green-blind)

#C3B041

Tritanopia (blue-blind)

#B7AB9D

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #acb638;
/* rgb */ color: rgb(172, 182, 56);
/* oklch */ color: oklch(74.5% 0.146 113.9);

Tailwind

colors: {
  custom: {
    50: '#c8cb76',
    500: '#acb638',
    950: '#000000',
  },
}

SCSS

$custom: #acb638;
$custom-light: #c8cb76;
$custom-dark: #000000;

JSON

{
  "hex": "#acb638",
  "rgb": {
    "r": 172,
    "g": 182,
    "b": 56
  },
  "hsl": {
    "h": 64.762,
    "s": 52.941,
    "l": 46.667
  },
  "oklch": {
    "l": 0.74524,
    "c": 0.14605,
    "h": 113.9
  },
  "luminance": 0.42512
}

Semantic roles & 50–950 ramp

primary

#ACB638

secondary

#8984C6

accent

#4BDC57

background

#FCFCF7

surface

#F9F8ED

border

#D2D1C8

text

#131309

muted

#82827B

Preview Lab

Preview with #ACB638

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →