#B1E563#B1E563

#B1E563 is a very light, vivid yellow-green. Relative luminance 0.663; OKLCH L 85.9% C 0.168 H 127.8°. Best body text is #000000 at 14.26:1 contrast (WCAG AA passes).

Color values

HEX	#B1E563
RGB	rgb(177, 229, 99)
HSL	hsl(84, 71%, 64%)
HSV	hsv(84, 57%, 90%)
CMYK	cmyk(22.7%, 0%, 56.8%, 10.2%)
CIE-LAB	lab(85.14, -36.67, 56.94)
CIE-LCH	lch(85.14, 67.73, 122.78°)
OKLab	oklab(85.93% -0.1033 0.1331)
OKLCH	oklch(85.93% 0.168 127.8)
XYZ	xyz(48.4027, 66.2857, 22.0463)
Luminance	0.6629 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1E563 #9763E5

analogous

#E5D863 #B1E563 #70E563

triadic

#B1E563 #63B1E5 #E563B1

tetradic

#B1E563 #63E5D8 #9763E5 #E56370

square

#B1E563 #63E5D8 #9763E5 #E56370

split-complementary

#B1E563 #6370E5 #D863E5

monochromatic

#75B01D #97DC2F #B1E563 #CBEE97 #E5F6CC

Accessibility & contrast

On white

1.47

#B1E563 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.26

#B1E563 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1E563

14.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1E563	#FFFFFF	#000000	##000000
##B1E563	1.00	1.47	14.26	14.26
#FFFFFF	1.47	1.00	21.00	21.00
#000000	14.26	21.00	1.00	1.00
##000000	14.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EFD755

Deuteranopia (green-blind)

#E8D46C

Tritanopia (blue-blind)

#B6DCC9

Achromatopsia (no color)

#D5D5D5

Design tokens & code

CSS

--color: #b1e563;
/* rgb */ color: rgb(177, 229, 99);
/* oklch */ color: oklch(85.9% 0.168 127.8);

Tailwind

colors: {
  custom: {
    50: '#cbed93',
    500: '#b1e563',
    950: '#000000',
  },
}

SCSS

$custom: #b1e563;
$custom-light: #cbed93;
$custom-dark: #000000;

JSON

{
  "hex": "#b1e563",
  "rgb": {
    "r": 177,
    "g": 229,
    "b": 99
  },
  "hsl": {
    "h": 84,
    "s": 71.429,
    "l": 64.314
  },
  "oklch": {
    "l": 0.85933,
    "c": 0.16847,
    "h": 127.8
  },
  "luminance": 0.66287
}

Semantic roles & 50–950 ramp

primary

#B1E563

secondary

#6A3BB1

accent

#12D35F

background

#FEFFFC

surface

#FBFEF4

border

#D4D6CE

text

#14160D

muted

#83857F

Preview Lab

Preview with #B1E563

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

Preview Lab → · Contrast checker → · Palette generator →