#A1B31C#A1B31C

#A1B31C is a light, vivid yellow. Relative luminance 0.399; OKLCH L 72.8% C 0.161 H 116.9°. Best body text is #000000 at 8.98:1 contrast (WCAG AA passes).

Color values

HEX	#A1B31C
RGB	rgb(161, 179, 28)
HSL	hsl(67, 73%, 41%)
HSV	hsv(67, 84%, 70%)
CMYK	cmyk(10.1%, 0%, 84.4%, 29.8%)
CIE-LAB	lab(69.40, -23.82, 66.49)
CIE-LCH	lch(69.40, 70.63, 109.71°)
OKLab	oklab(72.81% -0.0728 0.1434)
OKLCH	oklch(72.81% 0.161 116.9)
XYZ	xyz(31.0285, 39.9015, 7.1656)
Luminance	0.3990 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A1B31C #2E1CB3

analogous

#B3791C #A1B31C #56B31C

triadic

#A1B31C #1CA1B3 #B31CA1

tetradic

#A1B31C #1CB379 #2E1CB3 #B31C56

square

#A1B31C #1CB379 #2E1CB3 #B31C56

split-complementary

#A1B31C #1C56B3 #791CB3

monochromatic

#42490B #717E14 #A1B31C #C9DE2E #D7E763

Accessibility & contrast

On white

2.34

#A1B31C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.98

#A1B31C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #A1B31C

8.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A1B31C	#FFFFFF	#000000	##000000
##A1B31C	1.00	2.34	8.98	8.98
#FFFFFF	2.34	1.00	21.00	21.00
#000000	8.98	21.00	1.00	1.00
##000000	8.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C0A900

Deuteranopia (green-blind)

#BEAA2D

Tritanopia (blue-blind)

#ACA899

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #a1b31c;
/* rgb */ color: rgb(161, 179, 28);
/* oklch */ color: oklch(72.8% 0.161 116.9);

Tailwind

colors: {
  custom: {
    50: '#c1c969',
    500: '#a1b31c',
    950: '#000000',
  },
}

SCSS

$custom: #a1b31c;
$custom-light: #c1c969;
$custom-dark: #000000;

JSON

{
  "hex": "#a1b31c",
  "rgb": {
    "r": 161,
    "g": 179,
    "b": 28
  },
  "hsl": {
    "h": 67.152,
    "s": 72.947,
    "l": 40.588
  },
  "oklch": {
    "l": 0.72808,
    "c": 0.16087,
    "h": 116.9
  },
  "luminance": 0.39901
}

Semantic roles & 50–950 ramp

primary

#A1B31C

secondary

#6C5FCB

accent

#38F04E

background

#FCFCF6

surface

#F8F8EC

border

#D1D1C7

text

#131307

muted

#82827A

Preview Lab

Preview with #A1B31C

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

Preview Lab → · Contrast checker → · Palette generator →