#B1D541#B1D541

#B1D541 is a light, vivid yellow-green. Relative luminance 0.573; OKLCH L 82.0% C 0.174 H 122.3°. Best body text is #000000 at 12.46:1 contrast (WCAG AA passes).

Color values

HEX	#B1D541
RGB	rgb(177, 213, 65)
HSL	hsl(75, 64%, 55%)
HSV	hsv(75, 69%, 84%)
CMYK	cmyk(16.9%, 0%, 69.5%, 16.5%)
CIE-LAB	lab(80.36, -31.85, 65.66)
CIE-LCH	lch(80.36, 72.98, 115.88°)
OKLab	oklab(81.98% -0.0929 0.1473)
OKLCH	oklch(81.98% 0.174 122.3)
XYZ	xyz(42.8804, 57.3172, 13.8043)
Luminance	0.5732 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1D541 #6541D5

analogous

#D5AF41 #B1D541 #67D541

triadic

#B1D541 #41B1D5 #D541B1

tetradic

#B1D541 #41D5AF #6541D5 #D54167

square

#B1D541 #41D5AF #6541D5 #D54167

split-complementary

#B1D541 #4167D5 #AF41D5

monochromatic

#677F1C #90B227 #B1D541 #C6E073 #DAEBA5

Accessibility & contrast

On white

1.68

#B1D541 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.46

#B1D541 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1D541

12.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1D541	#FFFFFF	#000000	##000000
##B1D541	1.00	1.68	12.46	12.46
#FFFFFF	1.68	1.00	21.00	21.00
#000000	12.46	21.00	1.00	1.00
##000000	12.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E1C829

Deuteranopia (green-blind)

#DDC74D

Tritanopia (blue-blind)

#BACAB8

Achromatopsia (no color)

#C7C7C7

Design tokens & code

CSS

--color: #b1d541;
/* rgb */ color: rgb(177, 213, 65);
/* oklch */ color: oklch(82.0% 0.174 122.3);

Tailwind

colors: {
  custom: {
    50: '#cce27e',
    500: '#b1d541',
    950: '#000000',
  },
}

SCSS

$custom: #b1d541;
$custom-light: #cce27e;
$custom-dark: #000000;

JSON

{
  "hex": "#b1d541",
  "rgb": {
    "r": 177,
    "g": 213,
    "b": 65
  },
  "hsl": {
    "h": 74.595,
    "s": 63.793,
    "l": 54.51
  },
  "oklch": {
    "l": 0.81979,
    "c": 0.17415,
    "h": 122.3
  },
  "luminance": 0.57317
}

Semantic roles & 50–950 ramp

primary

#B1D541

secondary

#483487

accent

#41E769

background

#FEFEFB

surface

#FBFCF2

border

#D4D5CC

text

#14150B

muted

#83847E

Preview Lab

Preview with #B1D541

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

Preview Lab → · Contrast checker → · Palette generator →