#A3B31C#A3B31C

#A3B31C is a light, vivid yellow. Relative luminance 0.401; OKLCH L 73.0% C 0.160 H 116.2°. Best body text is #000000 at 9.02:1 contrast (WCAG AA passes).

Color values

HEX	#A3B31C
RGB	rgb(163, 179, 28)
HSL	hsl(66, 73%, 41%)
HSV	hsv(66, 84%, 70%)
CMYK	cmyk(8.9%, 0%, 84.4%, 29.8%)
CIE-LAB	lab(69.55, -22.97, 66.68)
CIE-LCH	lch(69.55, 70.52, 109.01°)
OKLab	oklab(72.97% -0.0706 0.1438)
OKLCH	oklch(72.97% 0.16 116.2)
XYZ	xyz(31.4349, 40.1111, 7.1846)
Luminance	0.4011 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A3B31C #2C1CB3

analogous

#B3781C #A3B31C #57B31C

triadic

#A3B31C #1CA3B3 #B31CA3

tetradic

#A3B31C #1CB378 #2C1CB3 #B31C57

square

#A3B31C #1CB378 #2C1CB3 #B31C57

split-complementary

#A3B31C #1C57B3 #781CB3

monochromatic

#43490B #737E14 #A3B31C #CCDE2E #D9E763

Accessibility & contrast

On white

2.33

#A3B31C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.02

#A3B31C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #A3B31C

9.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A3B31C	#FFFFFF	#000000	##000000
##A3B31C	1.00	2.33	9.02	9.02
#FFFFFF	2.33	1.00	21.00	21.00
#000000	9.02	21.00	1.00	1.00
##000000	9.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C0A900

Deuteranopia (green-blind)

#BFAB2D

Tritanopia (blue-blind)

#AEA899

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #a3b31c;
/* rgb */ color: rgb(163, 179, 28);
/* oklch */ color: oklch(73.0% 0.160 116.2);

Tailwind

colors: {
  custom: {
    50: '#c2c969',
    500: '#a3b31c',
    950: '#000000',
  },
}

SCSS

$custom: #a3b31c;
$custom-light: #c2c969;
$custom-dark: #000000;

JSON

{
  "hex": "#a3b31c",
  "rgb": {
    "r": 163,
    "g": 179,
    "b": 28
  },
  "hsl": {
    "h": 66.358,
    "s": 72.947,
    "l": 40.588
  },
  "oklch": {
    "l": 0.72965,
    "c": 0.16016,
    "h": 116.2
  },
  "luminance": 0.40111
}

Semantic roles & 50–950 ramp

primary

#A3B31C

secondary

#6B5FCB

accent

#38F04C

background

#FCFCF6

surface

#F8F8EC

border

#D1D1C7

text

#131307

muted

#82827A

Preview Lab

Preview with #A3B31C

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

Preview Lab → · Contrast checker → · Palette generator →