#B1E251#B1E251

#B1E251 is a very light, vivid yellow-green. Relative luminance 0.643; OKLCH L 85.1% C 0.179 H 126.0°. Best body text is #000000 at 13.87:1 contrast (WCAG AA passes).

Color values

HEX	#B1E251
RGB	rgb(177, 226, 81)
HSL	hsl(80, 71%, 60%)
HSV	hsv(80, 64%, 89%)
CMYK	cmyk(21.7%, 0%, 64.2%, 11.4%)
CIE-LAB	lab(84.14, -36.77, 63.43)
CIE-LCH	lch(84.14, 73.32, 120.10°)
OKLab	oklab(85.07% -0.1051 0.1448)
OKLCH	oklch(85.07% 0.179 126)
XYZ	xyz(46.8132, 64.3333, 17.7342)
Luminance	0.6433 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1E251 #8251E2

analogous

#E2CB51 #B1E251 #68E251

triadic

#B1E251 #51B1E2 #E251B1

tetradic

#B1E251 #51E2CB #8251E2 #E25168

square

#B1E251 #51E2CB #8251E2 #E25168

split-complementary

#B1E251 #5168E2 #CB51E2

monochromatic

#729E1A #97D323 #B1E251 #C9EB85 #E0F3BA

Accessibility & contrast

On white

1.51

#B1E251 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.87

#B1E251 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1E251

13.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1E251	#FFFFFF	#000000	##000000
##B1E251	1.00	1.51	13.87	13.87
#FFFFFF	1.51	1.00	21.00	21.00
#000000	13.87	21.00	1.00	1.00
##000000	13.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EDD43E

Deuteranopia (green-blind)

#E7D15C

Tritanopia (blue-blind)

#B8D8C4

Achromatopsia (no color)

#D2D2D2

Design tokens & code

CSS

--color: #b1e251;
/* rgb */ color: rgb(177, 226, 81);
/* oklch */ color: oklch(85.1% 0.179 126.0);

Tailwind

colors: {
  custom: {
    50: '#cceb88',
    500: '#b1e251',
    950: '#000000',
  },
}

SCSS

$custom: #b1e251;
$custom-light: #cceb88;
$custom-dark: #000000;

JSON

{
  "hex": "#b1e251",
  "rgb": {
    "r": 177,
    "g": 226,
    "b": 81
  },
  "hsl": {
    "h": 80.276,
    "s": 71.429,
    "l": 60.196
  },
  "oklch": {
    "l": 0.85071,
    "c": 0.17895,
    "h": 126
  },
  "luminance": 0.64334
}

Semantic roles & 50–950 ramp

primary

#B1E251

secondary

#5A36A1

accent

#12D353

background

#FEFEFC

surface

#FBFDF4

border

#D4D5CE

text

#14160C

muted

#83847F

Preview Lab

Preview with #B1E251

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

Preview Lab → · Contrast checker → · Palette generator →