#B1BB33#B1BB33

#B1BB33 is a light, vivid yellow. Relative luminance 0.451; OKLCH L 76.0% C 0.153 H 113.7°. Best body text is #000000 at 10.03:1 contrast (WCAG AA passes).

Color values

HEX	#B1BB33
RGB	rgb(177, 187, 51)
HSL	hsl(64, 57%, 47%)
HSV	hsv(64, 73%, 73%)
CMYK	cmyk(5.3%, 0%, 72.7%, 26.7%)
CIE-LAB	lab(72.98, -20.08, 63.42)
CIE-LCH	lch(72.98, 66.52, 107.57°)
OKLab	oklab(76.01% -0.0616 0.1403)
OKLCH	oklch(76.01% 0.153 113.7)
XYZ	xyz(36.5004, 45.1275, 9.9190)
Luminance	0.4513 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1BB33 #3D33BB

analogous

#BB8133 #B1BB33 #6DBB33

triadic

#B1BB33 #33B1BB #BB33B1

tetradic

#B1BB33 #33BB81 #3D33BB #BB336D

square

#B1BB33 #33BB81 #3D33BB #BB336D

split-complementary

#B1BB33 #336DBB #8133BB

monochromatic

#565B19 #838B26 #B1BB33 #C9D259 #D9DF89

Accessibility & contrast

On white

2.09

#B1BB33 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.03

#B1BB33 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1BB33

10.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1BB33	#FFFFFF	#000000	##000000
##B1BB33	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)

#C9B218

Deuteranopia (green-blind)

#C9B43E

Tritanopia (blue-blind)

#BDB0A1

Achromatopsia (no color)

#B3B3B3

Design tokens & code

CSS

--color: #b1bb33;
/* rgb */ color: rgb(177, 187, 51);
/* oklch */ color: oklch(76.0% 0.153 113.7);

Tailwind

colors: {
  custom: {
    50: '#cccf74',
    500: '#b1bb33',
    950: '#000000',
  },
}

SCSS

$custom: #b1bb33;
$custom-light: #cccf74;
$custom-dark: #000000;

JSON

{
  "hex": "#b1bb33",
  "rgb": {
    "r": 177,
    "g": 187,
    "b": 51
  },
  "hsl": {
    "h": 64.412,
    "s": 57.143,
    "l": 46.667
  },
  "oklch": {
    "l": 0.76014,
    "c": 0.15321,
    "h": 113.7
  },
  "luminance": 0.45127
}

Semantic roles & 50–950 ramp

primary

#B1BB33

secondary

#8681C9

accent

#47E053

background

#FCFCF7

surface

#F9F9ED

border

#D2D2C8

text

#141309

muted

#82827B

Preview Lab

Preview with #B1BB33

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

Preview Lab → · Contrast checker → · Palette generator →