#B1CB37#B1CB37

#B1CB37 is a light, vivid yellow-green. Relative luminance 0.523; OKLCH L 79.6% C 0.169 H 119.2°. Best body text is #000000 at 11.47:1 contrast (WCAG AA passes).

Color values

HEX#B1CB37
RGBrgb(177, 203, 55)
HSLhsl(71, 59%, 51%)
HSVhsv(71, 73%, 80%)
CMYKcmyk(12.8%, 0%, 72.9%, 20.4%)
CIE-LABlab(77.48, -27.69, 66.37)
CIE-LCHlch(77.48, 71.91, 112.64°)
OKLaboklab(79.64% -0.0823 0.1472)
OKLCHoklch(79.64% 0.169 119.2)
XYZxyz(40.1778, 52.3351, 11.5988)
Luminance0.5233 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#B1CB37 #5137CB
analogous
#CB9B37 #B1CB37 #67CB37
triadic
#B1CB37 #37B1CB #CB37B1
tetradic
#B1CB37 #37CB9B #5137CB #CB3767
square
#B1CB37 #37CB9B #5137CB #CB3767
split-complementary
#B1CB37 #3767CB #9B37CB
monochromatic
#5E6C1C #889C29 #B1CB37 #C4D868 #D7E498

Accessibility & contrast

On white

1.83
#B1CB37 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

11.47
#B1CB37 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1CB37
11.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##B1CB37#FFFFFF#000000##000000
##B1CB371.001.8311.4711.47
#FFFFFF1.831.0021.0021.00
#00000011.4721.001.001.00
##00000011.4721.001.001.00

Color blindness preview

Protanopia (red-blind)
#D8BF19
Deuteranopia (green-blind)
#D5C044
Tritanopia (blue-blind)
#BBC0AF
Achromatopsia (no color)
#BFBFBF

Design tokens & code

CSS
--color: #b1cb37;
/* rgb */ color: rgb(177, 203, 55);
/* oklch */ color: oklch(79.6% 0.169 119.2);
Tailwind
colors: {
  custom: {
    50: '#ccda78',
    500: '#b1cb37',
    950: '#000000',
  },
}
SCSS
$custom: #b1cb37;
$custom-light: #ccda78;
$custom-dark: #000000;
JSON
{
  "hex": "#b1cb37",
  "rgb": {
    "r": 177,
    "g": 203,
    "b": 55
  },
  "hsl": {
    "h": 70.541,
    "s": 58.73,
    "l": 50.588
  },
  "oklch": {
    "l": 0.79641,
    "c": 0.16862,
    "h": 119.2
  },
  "luminance": 0.52335
}

Semantic roles & 50–950 ramp

primary
#B1CB37
secondary
#3D3175
accent
#46E261
background
#FEFEFB
surface
#FBFBF1
border
#D4D4CB
text
#14140A
muted
#83837D

Preview Lab

Preview with #B1CB37

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

Preview Lab → · Contrast checker → · Palette generator →

#B1CB37 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva