#B1F55E#B1F55E

#B1F55E is a very light, vivid yellow-green. Relative luminance 0.755; OKLCH L 89.5% C 0.193 H 130.1°. Best body text is #000000 at 16.09:1 contrast (WCAG AA passes).

Color values

HEX	#B1F55E
RGB	rgb(177, 245, 94)
HSL	hsl(87, 88%, 66%)
HSV	hsv(87, 62%, 96%)
CMYK	cmyk(27.8%, 0%, 61.6%, 3.9%)
CIE-LAB	lab(89.61, -44.17, 64.07)
CIE-LCH	lch(89.61, 77.82, 124.58°)
OKLab	oklab(89.54% -0.1244 0.1478)
OKLCH	oklch(89.54% 0.193 130.1)
XYZ	xyz(52.8038, 75.4586, 22.3704)
Luminance	0.7546 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1F55E #A25EF5

analogous

#F5EE5E #B1F55E #66F55E

triadic

#B1F55E #5EB1F5 #F55EB1

tetradic

#B1F55E #5EF5EE #A25EF5 #F55E66

square

#B1F55E #5EF5EE #A25EF5 #F55E66

split-complementary

#B1F55E #5E66F5 #EE5EF5

monochromatic

#76CC0D #95F124 #B1F55E #CDF998 #E9FCD1

Accessibility & contrast

On white

1.30

#B1F55E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.09

#B1F55E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1F55E

16.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1F55E	#FFFFFF	#000000	##000000
##B1F55E	1.00	1.30	16.09	16.09
#FFFFFF	1.30	1.00	21.00	21.00
#000000	16.09	21.00	1.00	1.00
##000000	16.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE44C

Deuteranopia (green-blind)

#F6E069

Tritanopia (blue-blind)

#B5EBD5

Achromatopsia (no color)

#E1E1E1

Design tokens & code

CSS

--color: #b1f55e;
/* rgb */ color: rgb(177, 245, 94);
/* oklch */ color: oklch(89.5% 0.193 130.1);

Tailwind

colors: {
  custom: {
    50: '#ccf991',
    500: '#b1f55e',
    950: '#000000',
  },
}

SCSS

$custom: #b1f55e;
$custom-light: #ccf991;
$custom-dark: #000000;

JSON

{
  "hex": "#b1f55e",
  "rgb": {
    "r": 177,
    "g": 245,
    "b": 94
  },
  "hsl": {
    "h": 87.02,
    "s": 88.304,
    "l": 66.471
  },
  "oklch": {
    "l": 0.89537,
    "c": 0.19315,
    "h": 130.1
  },
  "luminance": 0.7546
}

Semantic roles & 50–950 ramp

primary

#B1F55E

secondary

#742FC8

accent

#01E567

background

#FEFFFC

surface

#FBFFF4

border

#D4D7CE

text

#14170D

muted

#83857F

Preview Lab

Preview with #B1F55E

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

Preview Lab → · Contrast checker → · Palette generator →