#B1CF33#B1CF33

#B1CF33 is a light, vivid yellow-green. Relative luminance 0.542; OKLCH L 80.5% C 0.175 H 120.3°. Best body text is #000000 at 11.84:1 contrast (WCAG AA passes).

Color values

HEX#B1CF33
RGBrgb(177, 207, 51)
HSLhsl(72, 62%, 51%)
HSVhsv(72, 75%, 81%)
CMYKcmyk(14.5%, 0%, 75.4%, 18.8%)
CIE-LABlab(78.59, -29.77, 68.72)
CIE-LCHlch(78.59, 74.89, 113.42°)
OKLaboklab(80.52% -0.0884 0.1515)
OKLCHoklch(80.52% 0.175 120.3)
XYZxyz(41.0426, 54.2119, 11.4331)
Luminance0.5421 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#B1CF33 #5133CF
analogous
#CF9F33 #B1CF33 #63CF33
triadic
#B1CF33 #33B1CF #CF33B1
tetradic
#B1CF33 #33CF9F #5133CF #CF3363
square
#B1CF33 #33CF9F #5133CF #CF3363
split-complementary
#B1CF33 #3363CF #9F33CF
monochromatic
#5E6E1A #889F25 #B1CF33 #C4DB65 #D7E696

Accessibility & contrast

On white

1.77
#B1CF33 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

11.84
#B1CF33 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1CF33
11.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##B1CF33#FFFFFF#000000##000000
##B1CF331.001.7711.8411.84
#FFFFFF1.771.0021.0021.00
#00000011.8421.001.001.00
##00000011.8421.001.001.00

Color blindness preview

Protanopia (red-blind)
#DCC30A
Deuteranopia (green-blind)
#D9C342
Tritanopia (blue-blind)
#BBC4B2
Achromatopsia (no color)
#C2C2C2

Design tokens & code

CSS
--color: #b1cf33;
/* rgb */ color: rgb(177, 207, 51);
/* oklch */ color: oklch(80.5% 0.175 120.3);
Tailwind
colors: {
  custom: {
    50: '#ccdd77',
    500: '#b1cf33',
    950: '#000000',
  },
}
SCSS
$custom: #b1cf33;
$custom-light: #ccdd77;
$custom-dark: #000000;
JSON
{
  "hex": "#b1cf33",
  "rgb": {
    "r": 177,
    "g": 207,
    "b": 51
  },
  "hsl": {
    "h": 71.538,
    "s": 61.905,
    "l": 50.588
  },
  "oklch": {
    "l": 0.80524,
    "c": 0.17538,
    "h": 120.3
  },
  "luminance": 0.54212
}

Semantic roles & 50–950 ramp

primary
#B1CF33
secondary
#3D2F77
accent
#43E562
background
#FEFEFB
surface
#FBFCF1
border
#D4D5CB
text
#141509
muted
#83847D

Preview Lab

Preview with #B1CF33

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

Preview Lab → · Contrast checker → · Palette generator →

#B1CF33 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva