#A4B31B#A4B31B

#A4B31B is a light, vivid yellow. Relative luminance 0.402; OKLCH L 73.0% C 0.160 H 115.8°. Best body text is #000000 at 9.04:1 contrast (WCAG AA passes).

Color values

HEX	#A4B31B
RGB	rgb(164, 179, 27)
HSL	hsl(66, 74%, 40%)
HSV	hsv(66, 85%, 70%)
CMYK	cmyk(8.4%, 0%, 84.9%, 29.8%)
CIE-LAB	lab(69.62, -22.57, 67.00)
CIE-LCH	lch(69.62, 70.70, 108.62°)
OKLab	oklab(73.04% -0.0696 0.1443)
OKLCH	oklch(73.04% 0.16 115.8)
XYZ	xyz(31.6287, 40.2124, 7.1323)
Luminance	0.4021 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A4B31B #2A1BB3

analogous

#B3761B #A4B31B #58B31B

triadic

#A4B31B #1BA4B3 #B31BA4

tetradic

#A4B31B #1BB376 #2A1BB3 #B31B58

square

#A4B31B #1BB376 #2A1BB3 #B31B58

split-complementary

#A4B31B #1B58B3 #761BB3

monochromatic

#43490B #737E13 #A4B31B #CDDF2C #DAE761

Accessibility & contrast

On white

2.32

#A4B31B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.04

#A4B31B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #A4B31B

9.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A4B31B	#FFFFFF	#000000	##000000
##A4B31B	1.00	2.32	9.04	9.04
#FFFFFF	2.32	1.00	21.00	21.00
#000000	9.04	21.00	1.00	1.00
##000000	9.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C0A900

Deuteranopia (green-blind)

#BFAB2C

Tritanopia (blue-blind)

#AFA899

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #a4b31b;
/* rgb */ color: rgb(164, 179, 27);
/* oklch */ color: oklch(73.0% 0.160 115.8);

Tailwind

colors: {
  custom: {
    50: '#c3c969',
    500: '#a4b31b',
    950: '#000000',
  },
}

SCSS

$custom: #a4b31b;
$custom-light: #c3c969;
$custom-dark: #000000;

JSON

{
  "hex": "#a4b31b",
  "rgb": {
    "r": 164,
    "g": 179,
    "b": 27
  },
  "hsl": {
    "h": 65.921,
    "s": 73.786,
    "l": 40.392
  },
  "oklch": {
    "l": 0.73041,
    "c": 0.16016,
    "h": 115.8
  },
  "luminance": 0.40212
}

Semantic roles & 50–950 ramp

primary

#A4B31B

secondary

#695ECC

accent

#37F04A

background

#FCFCF6

surface

#F8F8EC

border

#D1D1C7

text

#131307

muted

#82827A

Preview Lab

Preview with #A4B31B

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

Preview Lab → · Contrast checker → · Palette generator →