#B1E559#B1E559

#B1E559 is a very light, vivid yellow-green. Relative luminance 0.661; OKLCH L 85.8% C 0.177 H 127.1°. Best body text is #000000 at 14.22:1 contrast (WCAG AA passes).

Color values

HEX	#B1E559
RGB	rgb(177, 229, 89)
HSL	hsl(82, 73%, 62%)
HSV	hsv(82, 61%, 90%)
CMYK	cmyk(22.7%, 0%, 61.1%, 10.2%)
CIE-LAB	lab(85.05, -37.52, 61.14)
CIE-LCH	lch(85.05, 71.73, 121.53°)
OKLab	oklab(85.83% -0.1065 0.141)
OKLCH	oklch(85.83% 0.177 127.1)
XYZ	xyz(47.9539, 66.1062, 19.6826)
Luminance	0.6611 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1E559 #8D59E5

analogous

#E5D359 #B1E559 #6BE559

triadic

#B1E559 #59B1E5 #E559B1

tetradic

#B1E559 #59E5D3 #8D59E5 #E5596B

square

#B1E559 #59E5D3 #8D59E5 #E5596B

split-complementary

#B1E559 #596BE5 #D359E5

monochromatic

#74A91A #98DD24 #B1E559 #CAED8E #E3F6C3

Accessibility & contrast

On white

1.48

#B1E559 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.22

#B1E559 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1E559

14.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1E559	#FFFFFF	#000000	##000000
##B1E559	1.00	1.48	14.22	14.22
#FFFFFF	1.48	1.00	21.00	21.00
#000000	14.22	21.00	1.00	1.00
##000000	14.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F0D748

Deuteranopia (green-blind)

#E9D363

Tritanopia (blue-blind)

#B7DBC7

Achromatopsia (no color)

#D4D4D4

Design tokens & code

CSS

--color: #b1e559;
/* rgb */ color: rgb(177, 229, 89);
/* oklch */ color: oklch(85.8% 0.177 127.1);

Tailwind

colors: {
  custom: {
    50: '#cbed8d',
    500: '#b1e559',
    950: '#000000',
  },
}

SCSS

$custom: #b1e559;
$custom-light: #cbed8d;
$custom-dark: #000000;

JSON

{
  "hex": "#b1e559",
  "rgb": {
    "r": 177,
    "g": 229,
    "b": 89
  },
  "hsl": {
    "h": 82.286,
    "s": 72.917,
    "l": 62.353
  },
  "oklch": {
    "l": 0.8583,
    "c": 0.17667,
    "h": 127.1
  },
  "luminance": 0.66107
}

Semantic roles & 50–950 ramp

primary

#B1E559

secondary

#6237AB

accent

#10D559

background

#FEFFFC

surface

#FBFEF4

border

#D4D6CE

text

#14160D

muted

#83857F

Preview Lab

Preview with #B1E559

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

Preview Lab → · Contrast checker → · Palette generator →