#ACA638#ACA638

#ACA638 is a light, vivid yellow. Relative luminance 0.363; OKLCH L 71.0% C 0.129 H 106.2°. Best body text is #000000 at 8.27:1 contrast (WCAG AA passes).

Color values

HEX	#ACA638
RGB	rgb(172, 166, 56)
HSL	hsl(57, 51%, 45%)
HSV	hsv(57, 67%, 67%)
CMYK	cmyk(0%, 3.5%, 67.4%, 32.5%)
CIE-LAB	lab(66.77, -11.25, 55.26)
CIE-LCH	lch(66.77, 56.40, 101.51°)
OKLab	oklab(70.97% -0.0361 0.1241)
OKLCH	oklch(70.97% 0.129 106.2)
XYZ	xyz(31.3645, 36.3297, 9.1008)
Luminance	0.3633 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ACA638 #383EAC

analogous

#AC6C38 #ACA638 #78AC38

triadic

#ACA638 #38ACA6 #A638AC

tetradic

#ACA638 #38AC6C #383EAC #AC3878

square

#ACA638 #38AC6C #383EAC #AC3878

split-complementary

#ACA638 #3878AC #6C38AC

monochromatic

#504D1A #7E7929 #ACA638 #C9C358 #D8D487

Accessibility & contrast

On white

2.54

#ACA638 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.27

#ACA638 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ACA638

8.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ACA638	#FFFFFF	#000000	##000000
##ACA638	1.00	2.54	8.27	8.27
#FFFFFF	2.54	1.00	21.00	21.00
#000000	8.27	21.00	1.00	1.00
##000000	8.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B4A028

Deuteranopia (green-blind)

#B7A53F

Tritanopia (blue-blind)

#B89B90

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #aca638;
/* rgb */ color: rgb(172, 166, 56);
/* oklch */ color: oklch(71.0% 0.129 106.2);

Tailwind

colors: {
  custom: {
    50: '#c8c075',
    500: '#aca638',
    950: '#000000',
  },
}

SCSS

$custom: #aca638;
$custom-light: #c8c075;
$custom-dark: #000000;

JSON

{
  "hex": "#aca638",
  "rgb": {
    "r": 172,
    "g": 166,
    "b": 56
  },
  "hsl": {
    "h": 56.897,
    "s": 50.877,
    "l": 44.706
  },
  "oklch": {
    "l": 0.70967,
    "c": 0.12924,
    "h": 106.2
  },
  "luminance": 0.36329
}

Semantic roles & 50–950 ramp

primary

#ACA638

secondary

#7E82C2

accent

#55DA4D

background

#FCFBF7

surface

#F9F7ED

border

#D2D0C8

text

#131209

muted

#82817B

Preview Lab

Preview with #ACA638

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

Preview Lab → · Contrast checker → · Palette generator →