#B1FA63#B1FA63

#B1FA63 is a very light, vivid yellow-green. Relative luminance 0.786; OKLCH L 90.7% C 0.196 H 131.2°. Best body text is #000000 at 16.72:1 contrast (WCAG AA passes).

Color values

HEX	#B1FA63
RGB	rgb(177, 250, 99)
HSL	hsl(89, 94%, 68%)
HSV	hsv(89, 60%, 98%)
CMYK	cmyk(29.2%, 0%, 60.4%, 2%)
CIE-LAB	lab(91.06, -45.91, 63.60)
CIE-LCH	lch(91.06, 78.44, 125.82°)
OKLab	oklab(90.73% -0.1288 0.1473)
OKLCH	oklch(90.73% 0.196 131.2)
XYZ	xyz(54.5686, 78.6175, 24.1016)
Luminance	0.7862 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

#A9F971

ΔE00 2.35

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1FA63 #AC63FA

analogous

#FAF863 #B1FA63 #65FA63

triadic

#B1FA63 #63B1FA #FA63B1

tetradic

#B1FA63 #63FAF8 #AC63FA #FA6365

square

#B1FA63 #63FAF8 #AC63FA #FA6365

split-complementary

#B1FA63 #6365FA #F863FA

monochromatic

#75DC07 #93F828 #B1FA63 #CFFC9E #ECFEDA

Accessibility & contrast

On white

1.26

#B1FA63 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.72

#B1FA63 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1FA63

16.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1FA63	#FFFFFF	#000000	##000000
##B1FA63	1.00	1.26	16.72	16.72
#FFFFFF	1.26	1.00	21.00	21.00
#000000	16.72	21.00	1.00	1.00
##000000	16.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE952

Deuteranopia (green-blind)

#FAE36E

Tritanopia (blue-blind)

#B4F0DA

Achromatopsia (no color)

#E5E5E5

Design tokens & code

CSS

--color: #b1fa63;
/* rgb */ color: rgb(177, 250, 99);
/* oklch */ color: oklch(90.7% 0.196 131.2);

Tailwind

colors: {
  custom: {
    50: '#ccfc95',
    500: '#b1fa63',
    950: '#000000',
  },
}

SCSS

$custom: #b1fa63;
$custom-light: #ccfc95;
$custom-dark: #000000;

JSON

{
  "hex": "#b1fa63",
  "rgb": {
    "r": 177,
    "g": 250,
    "b": 99
  },
  "hsl": {
    "h": 89.007,
    "s": 93.789,
    "l": 68.431
  },
  "oklch": {
    "l": 0.90731,
    "c": 0.19567,
    "h": 131.2
  },
  "luminance": 0.78619
}

Semantic roles & 50–950 ramp

primary

#B1FA63

secondary

#7E2ED4

accent

#00E66F

background

#FEFFFC

surface

#FBFFF5

border

#D4D7CF

text

#14170E

muted

#83857F

Preview Lab

Preview with #B1FA63

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

Preview Lab → · Contrast checker → · Palette generator →