#B1E33B#B1E33B

#B1E33B is a very light, vivid yellow-green. Relative luminance 0.646; OKLCH L 85.1% C 0.194 H 125.2°. Best body text is #000000 at 13.92:1 contrast (WCAG AA passes).

Color values

HEX	#B1E33B
RGB	rgb(177, 227, 59)
HSL	hsl(78, 75%, 56%)
HSV	hsv(78, 74%, 89%)
CMYK	cmyk(22%, 0%, 74%, 11%)
CIE-LAB	lab(84.28, -38.56, 71.56)
CIE-LCH	lch(84.28, 81.29, 118.32°)
OKLab	oklab(85.14% -0.1118 0.1587)
OKLCH	oklch(85.14% 0.194 125.2)
XYZ	xyz(46.3903, 64.6005, 14.1619)
Luminance	0.6460 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1E33B #6D3BE3

analogous

#E3C13B #B1E33B #5DE33B

triadic

#B1E33B #3BB1E3 #E33BB1

tetradic

#B1E33B #3BE3C1 #6D3BE3 #E33B5D

square

#B1E33B #3BE3C1 #6D3BE3 #E33B5D

split-complementary

#B1E33B #3B5DE3 #C13BE3

monochromatic

#6B8F14 #93C51C #B1E33B #C6EB71 #DCF2A6

Accessibility & contrast

On white

1.51

#B1E33B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.92

#B1E33B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1E33B

13.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1E33B	#FFFFFF	#000000	##000000
##B1E33B	1.00	1.51	13.92	13.92
#FFFFFF	1.51	1.00	21.00	21.00
#000000	13.92	21.00	1.00	1.00
##000000	13.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EFD415

Deuteranopia (green-blind)

#E9D24B

Tritanopia (blue-blind)

#B9D8C3

Achromatopsia (no color)

#D2D2D2

Design tokens & code

CSS

--color: #b1e33b;
/* rgb */ color: rgb(177, 227, 59);
/* oklch */ color: oklch(85.1% 0.194 125.2);

Tailwind

colors: {
  custom: {
    50: '#ccec7d',
    500: '#b1e33b',
    950: '#000000',
  },
}

SCSS

$custom: #b1e33b;
$custom-light: #ccec7d;
$custom-dark: #000000;

JSON

{
  "hex": "#b1e33b",
  "rgb": {
    "r": 177,
    "g": 227,
    "b": 59
  },
  "hsl": {
    "h": 77.857,
    "s": 75,
    "l": 56.078
  },
  "oklch": {
    "l": 0.85137,
    "c": 0.19418,
    "h": 125.2
  },
  "luminance": 0.64601
}

Semantic roles & 50–950 ramp

primary

#B1E33B

secondary

#4C2E94

accent

#36F26E

background

#FEFEFB

surface

#FBFDF2

border

#D4D5CC

text

#14160B

muted

#83847E

Preview Lab

Preview with #B1E33B

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

Preview Lab → · Contrast checker → · Palette generator →