#B4B01B#B4B01B

#B4B01B is a light, vivid yellow. Relative luminance 0.408; OKLCH L 73.7% C 0.153 H 107.9°. Best body text is #000000 at 9.17:1 contrast (WCAG AA passes).

Color values

HEX	#B4B01B
RGB	rgb(180, 176, 27)
HSL	hsl(58, 74%, 41%)
HSV	hsv(58, 85%, 71%)
CMYK	cmyk(0%, 2.2%, 85%, 29.4%)
CIE-LAB	lab(70.06, -14.12, 67.88)
CIE-LCH	lch(70.06, 69.34, 101.75°)
OKLab	oklab(73.71% -0.047 0.1454)
OKLCH	oklch(73.71% 0.153 107.9)
XYZ	xyz(34.5470, 40.8343, 7.0987)
Luminance	0.4083 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4B01B #1B1FB4

analogous

#B4631B #B4B01B #6CB41B

triadic

#B4B01B #1BB4B0 #B01BB4

tetradic

#B4B01B #1BB463 #1B1FB4 #B41B6C

square

#B4B01B #1BB463 #1B1FB4 #B41B6C

split-complementary

#B4B01B #1B6CB4 #631BB4

monochromatic

#4A480B #7F7C13 #B4B01B #DFDB2D #E7E462

Accessibility & contrast

On white

2.29

#B4B01B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.17

#B4B01B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B4B01B

9.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4B01B	#FFFFFF	#000000	##000000
##B4B01B	1.00	2.29	9.17	9.17
#FFFFFF	2.29	1.00	21.00	21.00
#000000	9.17	21.00	1.00	1.00
##000000	9.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C0A900

Deuteranopia (green-blind)

#C2AD2B

Tritanopia (blue-blind)

#C2A496

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #b4b01b;
/* rgb */ color: rgb(180, 176, 27);
/* oklch */ color: oklch(73.7% 0.153 107.9);

Tailwind

colors: {
  custom: {
    50: '#cfc769',
    500: '#b4b01b',
    950: '#000000',
  },
}

SCSS

$custom: #b4b01b;
$custom-light: #cfc769;
$custom-dark: #000000;

JSON

{
  "hex": "#b4b01b",
  "rgb": {
    "r": 180,
    "g": 176,
    "b": 27
  },
  "hsl": {
    "h": 58.431,
    "s": 73.913,
    "l": 40.588
  },
  "oklch": {
    "l": 0.73707,
    "c": 0.15285,
    "h": 107.9
  },
  "luminance": 0.40833
}

Semantic roles & 50–950 ramp

primary

#B4B01B

secondary

#5F62CC

accent

#3CF137

background

#FDFCF6

surface

#FAF8EC

border

#D3D1C7

text

#141307

muted

#83827A

Preview Lab

Preview with #B4B01B

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

Preview Lab → · Contrast checker → · Palette generator →