#B1E43F#B1E43F

#B1E43F is a very light, vivid yellow-green. Relative luminance 0.652; OKLCH L 85.4% C 0.193 H 125.5°. Best body text is #000000 at 14.04:1 contrast (WCAG AA passes).

Color values

HEX	#B1E43F
RGB	rgb(177, 228, 63)
HSL	hsl(79, 75%, 57%)
HSV	hsv(79, 72%, 89%)
CMYK	cmyk(22.4%, 0%, 72.4%, 10.6%)
CIE-LAB	lab(84.58, -38.80, 70.54)
CIE-LCH	lch(84.58, 80.50, 118.81°)
OKLab	oklab(85.39% -0.1122 0.1572)
OKLCH	oklch(85.39% 0.193 125.5)
XYZ	xyz(46.7724, 65.1922, 14.8208)
Luminance	0.6519 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1E43F #723FE4

analogous

#E4C43F #B1E43F #5FE43F

triadic

#B1E43F #3FB1E4 #E43FB1

tetradic

#B1E43F #3FE4C4 #723FE4 #E43F5F

square

#B1E43F #3FE4C4 #723FE4 #E43F5F

split-complementary

#B1E43F #3F5FE4 #C43FE4

monochromatic

#6D9415 #94C91C #B1E43F #C7EC75 #DDF3AA

Accessibility & contrast

On white

1.50

#B1E43F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.04

#B1E43F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1E43F

14.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1E43F	#FFFFFF	#000000	##000000
##B1E43F	1.00	1.50	14.04	14.04
#FFFFFF	1.50	1.00	21.00	21.00
#000000	14.04	21.00	1.00	1.00
##000000	14.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F0D51E

Deuteranopia (green-blind)

#E9D24E

Tritanopia (blue-blind)

#B9D9C4

Achromatopsia (no color)

#D3D3D3

Design tokens & code

CSS

--color: #b1e43f;
/* rgb */ color: rgb(177, 228, 63);
/* oklch */ color: oklch(85.4% 0.193 125.5);

Tailwind

colors: {
  custom: {
    50: '#ccec7f',
    500: '#b1e43f',
    950: '#000000',
  },
}

SCSS

$custom: #b1e43f;
$custom-light: #ccec7f;
$custom-dark: #000000;

JSON

{
  "hex": "#b1e43f",
  "rgb": {
    "r": 177,
    "g": 228,
    "b": 63
  },
  "hsl": {
    "h": 78.545,
    "s": 75.342,
    "l": 57.059
  },
  "oklch": {
    "l": 0.85392,
    "c": 0.19313,
    "h": 125.5
  },
  "luminance": 0.65193
}

Semantic roles & 50–950 ramp

primary

#B1E43F

secondary

#502F98

accent

#36F270

background

#FEFEFB

surface

#FBFDF2

border

#D4D5CC

text

#14160B

muted

#83847E

Preview Lab

Preview with #B1E43F

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

Preview Lab → · Contrast checker → · Palette generator →