#B1F663#B1F663

#B1F663 is a very light, vivid yellow-green. Relative luminance 0.762; OKLCH L 89.8% C 0.191 H 130.6°. Best body text is #000000 at 16.23:1 contrast (WCAG AA passes).

Color values

HEX	#B1F663
RGB	rgb(177, 246, 99)
HSL	hsl(88, 89%, 68%)
HSV	hsv(88, 60%, 96%)
CMYK	cmyk(28%, 0%, 59.8%, 3.5%)
CIE-LAB	lab(89.93, -44.19, 62.35)
CIE-LCH	lch(89.93, 76.42, 125.33°)
OKLab	oklab(89.82% -0.124 0.1447)
OKLCH	oklch(89.82% 0.191 130.6)
XYZ	xyz(53.3389, 76.1580, 23.6917)
Luminance	0.7616 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

#A9F971

ΔE00 2.43

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1F663 #A863F6

analogous

#F6F163 #B1F663 #68F663

triadic

#B1F663 #63B1F6 #F663B1

tetradic

#B1F663 #63F6F1 #A863F6 #F66368

square

#B1F663 #63F6F1 #A863F6 #F66368

split-complementary

#B1F663 #6368F6 #F163F6

monochromatic

#75D20C #94F329 #B1F663 #CEF99D #EBFDD7

Accessibility & contrast

On white

1.29

#B1F663 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.23

#B1F663 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1F663

16.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1F663	#FFFFFF	#000000	##000000
##B1F663	1.00	1.29	16.23	16.23
#FFFFFF	1.29	1.00	21.00	21.00
#000000	16.23	21.00	1.00	1.00
##000000	16.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE552

Deuteranopia (green-blind)

#F7E06E

Tritanopia (blue-blind)

#B4ECD7

Achromatopsia (no color)

#E2E2E2

Design tokens & code

CSS

--color: #b1f663;
/* rgb */ color: rgb(177, 246, 99);
/* oklch */ color: oklch(89.8% 0.191 130.6);

Tailwind

colors: {
  custom: {
    50: '#ccf994',
    500: '#b1f663',
    950: '#000000',
  },
}

SCSS

$custom: #b1f663;
$custom-light: #ccf994;
$custom-dark: #000000;

JSON

{
  "hex": "#b1f663",
  "rgb": {
    "r": 177,
    "g": 246,
    "b": 99
  },
  "hsl": {
    "h": 88.163,
    "s": 89.091,
    "l": 67.647
  },
  "oklch": {
    "l": 0.89815,
    "c": 0.19056,
    "h": 130.6
  },
  "luminance": 0.76159
}

Semantic roles & 50–950 ramp

primary

#B1F663

secondary

#7A30CE

accent

#00E66C

background

#FEFFFC

surface

#FBFFF5

border

#D4D7CF

text

#14170E

muted

#83857F

Preview Lab

Preview with #B1F663

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

Preview Lab → · Contrast checker → · Palette generator →