#B5FF63#B5FF63

#B5FF63 is a very light, highly saturated yellow-green. Relative luminance 0.822; OKLCH L 92.1% C 0.200 H 130.9°. Best body text is #000000 at 17.45:1 contrast (WCAG AA passes).

Color values

HEX	#B5FF63
RGB	rgb(181, 255, 99)
HSL	hsl(88, 100%, 69%)
HSV	hsv(88, 61%, 100%)
CMYK	cmyk(29%, 0%, 61.2%, 0%)
CIE-LAB	lab(92.68, -46.64, 65.46)
CIE-LCH	lch(92.68, 80.37, 125.47°)
OKLab	oklab(92.1% -0.131 0.1512)
OKLCH	oklch(92.1% 0.2 130.9)
XYZ	xyz(57.0676, 82.2429, 24.6697)
Luminance	0.8225 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

#A9F971

ΔE00 3.03

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B5FF63 #AD63FF

analogous

#FFFB63 #B5FF63 #67FF63

triadic

#B5FF63 #63B5FF #FF63B5

tetradic

#B5FF63 #63FFFB #AD63FF #FF6367

square

#B5FF63 #63FFFB #AD63FF #FF6367

split-complementary

#B5FF63 #6367FF #FB63FF

monochromatic

#7AE800 #98FF26 #B5FF63 #D2FFA0 #EFFFDD

Accessibility & contrast

On white

1.20

#B5FF63 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.45

#B5FF63 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B5FF63

17.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B5FF63	#FFFFFF	#000000	##000000
##B5FF63	1.00	1.20	17.45	17.45
#FFFFFF	1.20	1.00	21.00	21.00
#000000	17.45	21.00	1.00	1.00
##000000	17.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEE51

Deuteranopia (green-blind)

#FFE86F

Tritanopia (blue-blind)

#B8F5DE

Achromatopsia (no color)

#EAEAEA

Design tokens & code

CSS

--color: #b5ff63;
/* rgb */ color: rgb(181, 255, 99);
/* oklch */ color: oklch(92.1% 0.200 130.9);

Tailwind

colors: {
  custom: {
    50: '#cfff95',
    500: '#b5ff63',
    950: '#000000',
  },
}

SCSS

$custom: #b5ff63;
$custom-light: #cfff95;
$custom-dark: #000000;

JSON

{
  "hex": "#b5ff63",
  "rgb": {
    "r": 181,
    "g": 255,
    "b": 99
  },
  "hsl": {
    "h": 88.462,
    "s": 100,
    "l": 69.412
  },
  "oklch": {
    "l": 0.92104,
    "c": 0.20008,
    "h": 130.9
  },
  "luminance": 0.82245
}

Semantic roles & 50–950 ramp

primary

#B5FF63

secondary

#7F2CDA

accent

#00E66D

background

#FEFFFC

surface

#FBFFF5

border

#D4D7CF

text

#14180E

muted

#83867F

Preview Lab

Preview with #B5FF63

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

Preview Lab → · Contrast checker → · Palette generator →