#B1D03B#B1D03B

#B1D03B is a light, vivid yellow-green. Relative luminance 0.548; OKLCH L 80.8% C 0.172 H 120.7°. Best body text is #000000 at 11.96:1 contrast (WCAG AA passes).

Color values

HEX#B1D03B
RGBrgb(177, 208, 59)
HSLhsl(72, 61%, 52%)
HSVhsv(72, 72%, 82%)
CMYKcmyk(14.9%, 0%, 71.6%, 18.4%)
CIE-LABlab(78.91, -29.85, 66.37)
CIE-LCHlch(78.91, 72.78, 114.21°)
OKLaboklab(80.8% -0.0879 0.1478)
OKLCHoklch(80.8% 0.172 120.7)
XYZxyz(41.4775, 54.7747, 12.5243)
Luminance0.5477 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#B1D03B #5A3BD0
analogous
#D0A43B #B1D03B #67D03B
triadic
#B1D03B #3BB1D0 #D03BB1
tetradic
#B1D03B #3BD0A4 #5A3BD0 #D03B67
square
#B1D03B #3BD0A4 #5A3BD0 #D03B67
split-complementary
#B1D03B #3B67D0 #A43BD0
monochromatic
#62751C #8CA628 #B1D03B #C5DC6C #D8E89E

Accessibility & contrast

On white

1.76
#B1D03B on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

11.96
#B1D03B on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1D03B
11.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##B1D03B#FFFFFF#000000##000000
##B1D03B1.001.7611.9611.96
#FFFFFF1.761.0021.0021.00
#00000011.9621.001.001.00
##00000011.9621.001.001.00

Color blindness preview

Protanopia (red-blind)
#DDC41F
Deuteranopia (green-blind)
#D9C448
Tritanopia (blue-blind)
#BBC5B3
Achromatopsia (no color)
#C3C3C3

Design tokens & code

CSS
--color: #b1d03b;
/* rgb */ color: rgb(177, 208, 59);
/* oklch */ color: oklch(80.8% 0.172 120.7);
Tailwind
colors: {
  custom: {
    50: '#ccde7b',
    500: '#b1d03b',
    950: '#000000',
  },
}
SCSS
$custom: #b1d03b;
$custom-light: #ccde7b;
$custom-dark: #000000;
JSON
{
  "hex": "#b1d03b",
  "rgb": {
    "r": 177,
    "g": 208,
    "b": 59
  },
  "hsl": {
    "h": 72.483,
    "s": 61.317,
    "l": 52.353
  },
  "oklch": {
    "l": 0.80801,
    "c": 0.17201,
    "h": 120.7
  },
  "luminance": 0.54775
}

Semantic roles & 50–950 ramp

primary
#B1D03B
secondary
#42327D
accent
#43E465
background
#FEFEFB
surface
#FBFCF2
border
#D4D5CC
text
#14150A
muted
#83847D

Preview Lab

Preview with #B1D03B

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

Preview Lab → · Contrast checker → · Palette generator →

#B1D03B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva