#B1D451#B1D451

#B1D451 is a light, vivid yellow-green. Relative luminance 0.570; OKLCH L 81.9% C 0.161 H 122.7°. Best body text is #000000 at 12.41:1 contrast (WCAG AA passes).

Color values

HEX	#B1D451
RGB	rgb(177, 212, 81)
HSL	hsl(76, 60%, 57%)
HSV	hsv(76, 62%, 83%)
CMYK	cmyk(16.5%, 0%, 61.8%, 16.9%)
CIE-LAB	lab(80.20, -30.32, 59.19)
CIE-LCH	lch(80.20, 66.50, 117.12°)
OKLab	oklab(81.89% -0.0872 0.1359)
OKLCH	oklch(81.89% 0.161 122.7)
XYZ	xyz(43.1605, 57.0280, 16.5167)
Luminance	0.5703 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1D451 #7451D4

analogous

#D4B651 #B1D451 #6FD451

triadic

#B1D451 #51B1D4 #D451B1

tetradic

#B1D451 #51D4B6 #7451D4 #D4516F

square

#B1D451 #51D4B6 #7451D4 #D4516F

split-complementary

#B1D451 #516FD4 #B651D4

monochromatic

#6D8922 #94BA2E #B1D451 #C7E082 #DDECB3

Accessibility & contrast

On white

1.69

#B1D451 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.41

#B1D451 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1D451

12.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1D451	#FFFFFF	#000000	##000000
##B1D451	1.00	1.69	12.41	12.41
#FFFFFF	1.69	1.00	21.00	21.00
#000000	12.41	21.00	1.00	1.00
##000000	12.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E0C841

Deuteranopia (green-blind)

#DBC75A

Tritanopia (blue-blind)

#B9CAB9

Achromatopsia (no color)

#C7C7C7

Design tokens & code

CSS

--color: #b1d451;
/* rgb */ color: rgb(177, 212, 81);
/* oklch */ color: oklch(81.9% 0.161 122.7);

Tailwind

colors: {
  custom: {
    50: '#cbe187',
    500: '#b1d451',
    950: '#000000',
  },
}

SCSS

$custom: #b1d451;
$custom-light: #cbe187;
$custom-dark: #000000;

JSON

{
  "hex": "#b1d451",
  "rgb": {
    "r": 177,
    "g": 212,
    "b": 81
  },
  "hsl": {
    "h": 76.031,
    "s": 60.369,
    "l": 57.451
  },
  "oklch": {
    "l": 0.81887,
    "c": 0.16148,
    "h": 122.7
  },
  "luminance": 0.57028
}

Semantic roles & 50–950 ramp

primary

#B1D451

secondary

#513A8F

accent

#44E46F

background

#FEFEFC

surface

#FBFCF4

border

#D4D5CE

text

#14150C

muted

#83847F

Preview Lab

Preview with #B1D451

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

Preview Lab → · Contrast checker → · Palette generator →