#B1D53C#B1D53C

#B1D53C is a light, vivid yellow-green. Relative luminance 0.573; OKLCH L 81.9% C 0.177 H 122.1°. Best body text is #000000 at 12.45:1 contrast (WCAG AA passes).

Color values

HEX	#B1D53C
RGB	rgb(177, 213, 60)
HSL	hsl(74, 65%, 54%)
HSV	hsv(74, 72%, 84%)
CMYK	cmyk(16.9%, 0%, 71.8%, 16.5%)
CIE-LAB	lab(80.33, -32.13, 67.41)
CIE-LCH	lch(80.33, 74.68, 115.49°)
OKLab	oklab(81.94% -0.0941 0.1502)
OKLCH	oklch(81.94% 0.177 122.1)
XYZ	xyz(42.7419, 57.2618, 13.0750)
Luminance	0.5726 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1D53C #603CD5

analogous

#D5AD3C #B1D53C #64D53C

triadic

#B1D53C #3CB1D5 #D53CB1

tetradic

#B1D53C #3CD5AD #603CD5 #D53C64

square

#B1D53C #3CD5AD #603CD5 #D53C64

split-complementary

#B1D53C #3C64D5 #AD3CD5

monochromatic

#657C1B #8EAE26 #B1D53C #C5E06E #D9EBA1

Accessibility & contrast

On white

1.69

#B1D53C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.45

#B1D53C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1D53C

12.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1D53C	#FFFFFF	#000000	##000000
##B1D53C	1.00	1.69	12.45	12.45
#FFFFFF	1.69	1.00	21.00	21.00
#000000	12.45	21.00	1.00	1.00
##000000	12.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E2C81F

Deuteranopia (green-blind)

#DDC749

Tritanopia (blue-blind)

#BACAB7

Achromatopsia (no color)

#C7C7C7

Design tokens & code

CSS

--color: #b1d53c;
/* rgb */ color: rgb(177, 213, 60);
/* oklch */ color: oklch(81.9% 0.177 122.1);

Tailwind

colors: {
  custom: {
    50: '#cce27c',
    500: '#b1d53c',
    950: '#000000',
  },
}

SCSS

$custom: #b1d53c;
$custom-light: #cce27c;
$custom-dark: #000000;

JSON

{
  "hex": "#b1d53c",
  "rgb": {
    "r": 177,
    "g": 213,
    "b": 60
  },
  "hsl": {
    "h": 74.118,
    "s": 64.557,
    "l": 53.529
  },
  "oklch": {
    "l": 0.81944,
    "c": 0.17725,
    "h": 122.1
  },
  "luminance": 0.57262
}

Semantic roles & 50–950 ramp

primary

#B1D53C

secondary

#453284

accent

#40E868

background

#FEFEFB

surface

#FBFCF2

border

#D4D5CC

text

#14150A

muted

#83847D

Preview Lab

Preview with #B1D53C

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

Preview Lab → · Contrast checker → · Palette generator →