#B1E663#B1E663

#B1E663 is a very light, vivid yellow-green. Relative luminance 0.668; OKLCH L 86.2% C 0.170 H 128.0°. Best body text is #000000 at 14.37:1 contrast (WCAG AA passes).

Color values

HEX	#B1E663
RGB	rgb(177, 230, 99)
HSL	hsl(84, 72%, 65%)
HSV	hsv(84, 57%, 90%)
CMYK	cmyk(23%, 0%, 57%, 9.8%)
CIE-LAB	lab(85.42, -37.13, 57.26)
CIE-LCH	lch(85.42, 68.24, 122.96°)
OKLab	oklab(86.16% -0.1045 0.1338)
OKLCH	oklch(86.16% 0.17 128)
XYZ	xyz(48.6802, 66.8407, 22.1388)
Luminance	0.6684 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1E663 #9863E6

analogous

#E6DA63 #B1E663 #70E663

triadic

#B1E663 #63B1E6 #E663B1

tetradic

#B1E663 #63E6DA #9863E6 #E66370

square

#B1E663 #63E6DA #9863E6 #E66370

split-complementary

#B1E663 #6370E6 #DA63E6

monochromatic

#76B21D #97DE2E #B1E663 #CBEE98 #E6F7CC

Accessibility & contrast

On white

1.46

#B1E663 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.37

#B1E663 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1E663

14.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1E663	#FFFFFF	#000000	##000000
##B1E663	1.00	1.46	14.37	14.37
#FFFFFF	1.46	1.00	21.00	21.00
#000000	14.37	21.00	1.00	1.00
##000000	14.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F0D855

Deuteranopia (green-blind)

#E9D46C

Tritanopia (blue-blind)

#B6DDC9

Achromatopsia (no color)

#D5D5D5

Design tokens & code

CSS

--color: #b1e663;
/* rgb */ color: rgb(177, 230, 99);
/* oklch */ color: oklch(86.2% 0.170 128.0);

Tailwind

colors: {
  custom: {
    50: '#cbee93',
    500: '#b1e663',
    950: '#000000',
  },
}

SCSS

$custom: #b1e663;
$custom-light: #cbee93;
$custom-dark: #000000;

JSON

{
  "hex": "#b1e663",
  "rgb": {
    "r": 177,
    "g": 230,
    "b": 99
  },
  "hsl": {
    "h": 84.275,
    "s": 72.376,
    "l": 64.51
  },
  "oklch": {
    "l": 0.86161,
    "c": 0.16978,
    "h": 128
  },
  "luminance": 0.66842
}

Semantic roles & 50–950 ramp

primary

#B1E663

secondary

#6B3BB3

accent

#11D460

background

#FEFFFC

surface

#FBFEF4

border

#D4D6CE

text

#14160D

muted

#83857F

Preview Lab

Preview with #B1E663

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

Preview Lab → · Contrast checker → · Palette generator →