#B1BB39#B1BB39

#B1BB39 is a light, vivid yellow. Relative luminance 0.452; OKLCH L 76.1% C 0.149 H 113.7°. Best body text is #000000 at 10.04:1 contrast (WCAG AA passes).

Color values

HEX	#B1BB39
RGB	rgb(177, 187, 57)
HSL	hsl(65, 53%, 48%)
HSV	hsv(65, 70%, 73%)
CMYK	cmyk(5.3%, 0%, 69.5%, 26.7%)
CIE-LAB	lab(73.01, -19.78, 61.29)
CIE-LCH	lch(73.01, 64.40, 107.88°)
OKLab	oklab(76.06% -0.0602 0.1368)
OKLCH	oklch(76.06% 0.149 113.7)
XYZ	xyz(36.6413, 45.1839, 10.6613)
Luminance	0.4518 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1BB39 #4339BB

analogous

#BB8439 #B1BB39 #70BB39

triadic

#B1BB39 #39B1BB #BB39B1

tetradic

#B1BB39 #39BB84 #4339BB #BB3970

square

#B1BB39 #39BB84 #4339BB #BB3970

split-complementary

#B1BB39 #3970BB #8439BB

monochromatic

#585D1C #858C2B #B1BB39 #C7CF62 #D8DD91

Accessibility & contrast

On white

2.09

#B1BB39 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.04

#B1BB39 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1BB39

10.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1BB39	#FFFFFF	#000000	##000000
##B1BB39	1.00	2.09	10.04	10.04
#FFFFFF	2.09	1.00	21.00	21.00
#000000	10.04	21.00	1.00	1.00
##000000	10.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C9B224

Deuteranopia (green-blind)

#C8B543

Tritanopia (blue-blind)

#BDB0A1

Achromatopsia (no color)

#B3B3B3

Design tokens & code

CSS

--color: #b1bb39;
/* rgb */ color: rgb(177, 187, 57);
/* oklch */ color: oklch(76.1% 0.149 113.7);

Tailwind

colors: {
  custom: {
    50: '#cccf78',
    500: '#b1bb39',
    950: '#000000',
  },
}

SCSS

$custom: #b1bb39;
$custom-light: #cccf78;
$custom-dark: #000000;

JSON

{
  "hex": "#b1bb39",
  "rgb": {
    "r": 177,
    "g": 187,
    "b": 57
  },
  "hsl": {
    "h": 64.615,
    "s": 53.279,
    "l": 47.843
  },
  "oklch": {
    "l": 0.76056,
    "c": 0.14947,
    "h": 113.7
  },
  "luminance": 0.45183
}

Semantic roles & 50–950 ramp

primary

#B1BB39

secondary

#8C87C8

accent

#4BDD56

background

#FCFCF7

surface

#F9F9EE

border

#D2D2C9

text

#141309

muted

#82827B

Preview Lab

Preview with #B1BB39

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

Preview Lab → · Contrast checker → · Palette generator →