#B1D33B#B1D33B

#B1D33B is a light, vivid yellow-green. Relative luminance 0.563; OKLCH L 81.5% C 0.175 H 121.5°. Best body text is #000000 at 12.25:1 contrast (WCAG AA passes).

Color values

HEX#B1D33B
RGBrgb(177, 211, 59)
HSLhsl(73, 63%, 53%)
HSVhsv(73, 72%, 83%)
CMYKcmyk(16.1%, 0%, 72%, 17.3%)
CIE-LABlab(79.76, -31.26, 67.20)
CIE-LCHlch(79.76, 74.11, 114.94°)
OKLaboklab(81.48% -0.0918 0.1496)
OKLCHoklch(81.48% 0.175 121.5)
XYZxyz(42.2158, 56.2514, 12.7704)
Luminance0.5625 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#B1D33B #5D3BD3
analogous
#D3A93B #B1D33B #65D33B
triadic
#B1D33B #3BB1D3 #D33BB1
tetradic
#B1D33B #3BD3A9 #5D3BD3 #D33B65
square
#B1D33B #3BD3A9 #5D3BD3 #D33B65
split-complementary
#B1D33B #3B65D3 #A93BD3
monochromatic
#64791B #8DAB26 #B1D33B #C5DE6D #D9E99F

Accessibility & contrast

On white

1.71
#B1D33B on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

12.25
#B1D33B on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1D33B
12.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##B1D33B#FFFFFF#000000##000000
##B1D33B1.001.7112.2512.25
#FFFFFF1.711.0021.0021.00
#00000012.2521.001.001.00
##00000012.2521.001.001.00

Color blindness preview

Protanopia (red-blind)
#E0C61E
Deuteranopia (green-blind)
#DCC648
Tritanopia (blue-blind)
#BBC8B6
Achromatopsia (no color)
#C6C6C6

Design tokens & code

CSS
--color: #b1d33b;
/* rgb */ color: rgb(177, 211, 59);
/* oklch */ color: oklch(81.5% 0.175 121.5);
Tailwind
colors: {
  custom: {
    50: '#cce07b',
    500: '#b1d33b',
    950: '#000000',
  },
}
SCSS
$custom: #b1d33b;
$custom-light: #cce07b;
$custom-dark: #000000;
JSON
{
  "hex": "#b1d33b",
  "rgb": {
    "r": 177,
    "g": 211,
    "b": 59
  },
  "hsl": {
    "h": 73.421,
    "s": 63.333,
    "l": 52.941
  },
  "oklch": {
    "l": 0.81482,
    "c": 0.17549,
    "h": 121.5
  },
  "luminance": 0.56251
}

Semantic roles & 50–950 ramp

primary
#B1D33B
secondary
#433281
accent
#41E666
background
#FEFEFB
surface
#FBFCF2
border
#D4D5CC
text
#14150A
muted
#83847D

Preview Lab

Preview with #B1D33B

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

Preview Lab → · Contrast checker → · Palette generator →

#B1D33B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva