#B1BB37#B1BB37

#B1BB37 is a light, vivid yellow. Relative luminance 0.452; OKLCH L 76.0% C 0.151 H 113.7°. Best body text is #000000 at 10.03:1 contrast (WCAG AA passes).

Color values

HEX	#B1BB37
RGB	rgb(177, 187, 55)
HSL	hsl(65, 55%, 47%)
HSV	hsv(65, 71%, 73%)
CMYK	cmyk(5.3%, 0%, 70.6%, 26.7%)
CIE-LAB	lab(73.00, -19.88, 62.01)
CIE-LCH	lch(73.00, 65.12, 107.78°)
OKLab	oklab(76.04% -0.0607 0.138)
OKLCH	oklch(76.04% 0.151 113.7)
XYZ	xyz(36.5924, 45.1643, 10.4036)
Luminance	0.4516 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1BB37 #4137BB

analogous

#BB8337 #B1BB37 #6FBB37

triadic

#B1BB37 #37B1BB #BB37B1

tetradic

#B1BB37 #37BB83 #4137BB #BB376F

square

#B1BB37 #37BB83 #4137BB #BB376F

split-complementary

#B1BB37 #376FBB #8337BB

monochromatic

#575C1B #848C29 #B1BB37 #C7D05F #D8DE8E

Accessibility & contrast

On white

2.09

#B1BB37 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.03

#B1BB37 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1BB37

10.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1BB37	#FFFFFF	#000000	##000000
##B1BB37	1.00	2.09	10.03	10.03
#FFFFFF	2.09	1.00	21.00	21.00
#000000	10.03	21.00	1.00	1.00
##000000	10.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C9B220

Deuteranopia (green-blind)

#C8B441

Tritanopia (blue-blind)

#BDB0A1

Achromatopsia (no color)

#B3B3B3

Design tokens & code

CSS

--color: #b1bb37;
/* rgb */ color: rgb(177, 187, 55);
/* oklch */ color: oklch(76.0% 0.151 113.7);

Tailwind

colors: {
  custom: {
    50: '#cccf76',
    500: '#b1bb37',
    950: '#000000',
  },
}

SCSS

$custom: #b1bb37;
$custom-light: #cccf76;
$custom-dark: #000000;

JSON

{
  "hex": "#b1bb37",
  "rgb": {
    "r": 177,
    "g": 187,
    "b": 55
  },
  "hsl": {
    "h": 64.545,
    "s": 54.545,
    "l": 47.451
  },
  "oklch": {
    "l": 0.76041,
    "c": 0.15076,
    "h": 113.7
  },
  "luminance": 0.45164
}

Semantic roles & 50–950 ramp

primary

#B1BB37

secondary

#8A85C9

accent

#4ADE55

background

#FCFCF7

surface

#F9F9EE

border

#D2D2C9

text

#141309

muted

#82827B

Preview Lab

Preview with #B1BB37

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

Preview Lab → · Contrast checker → · Palette generator →