#A3B01B#A3B01B

#A3B01B is a light, vivid yellow. Relative luminance 0.389; OKLCH L 72.3% C 0.157 H 115.1°. Best body text is #000000 at 8.78:1 contrast (WCAG AA passes).

Color values

HEX	#A3B01B
RGB	rgb(163, 176, 27)
HSL	hsl(65, 73%, 40%)
HSV	hsv(65, 85%, 69%)
CMYK	cmyk(7.4%, 0%, 84.7%, 31%)
CIE-LAB	lab(68.69, -21.51, 66.19)
CIE-LCH	lch(68.69, 69.60, 108.00°)
OKLab	oklab(72.28% -0.0666 0.1425)
OKLCH	oklch(72.28% 0.157 115.1)
XYZ	xyz(30.8284, 38.9169, 6.9244)
Luminance	0.3892 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A3B01B #281BB0

analogous

#B0731B #A3B01B #58B01B

triadic

#A3B01B #1BA3B0 #B01BA3

tetradic

#A3B01B #1BB073 #281BB0 #B01B58

square

#A3B01B #1BB073 #281BB0 #B01B58

split-complementary

#A3B01B #1B58B0 #731BB0

monochromatic

#41460B #727B13 #A3B01B #CFDE2A #DBE65F

Accessibility & contrast

On white

2.39

#A3B01B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.78

#A3B01B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #A3B01B

8.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A3B01B	#FFFFFF	#000000	##000000
##A3B01B	1.00	2.39	8.78	8.78
#FFFFFF	2.39	1.00	21.00	21.00
#000000	8.78	21.00	1.00	1.00
##000000	8.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BDA700

Deuteranopia (green-blind)

#BCA92C

Tritanopia (blue-blind)

#AEA596

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #a3b01b;
/* rgb */ color: rgb(163, 176, 27);
/* oklch */ color: oklch(72.3% 0.157 115.1);

Tailwind

colors: {
  custom: {
    50: '#c2c769',
    500: '#a3b01b',
    950: '#000000',
  },
}

SCSS

$custom: #a3b01b;
$custom-light: #c2c769;
$custom-dark: #000000;

JSON

{
  "hex": "#a3b01b",
  "rgb": {
    "r": 163,
    "g": 176,
    "b": 27
  },
  "hsl": {
    "h": 65.235,
    "s": 73.399,
    "l": 39.804
  },
  "oklch": {
    "l": 0.72275,
    "c": 0.15734,
    "h": 115.1
  },
  "luminance": 0.38916
}

Semantic roles & 50–950 ramp

primary

#A3B01B

secondary

#665CCB

accent

#38F048

background

#FCFCF6

surface

#F8F8EC

border

#D1D1C7

text

#131307

muted

#82827A

Preview Lab

Preview with #A3B01B

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

Preview Lab → · Contrast checker → · Palette generator →