#B1FA61#B1FA61

#B1FA61 is a very light, vivid yellow-green. Relative luminance 0.786; OKLCH L 90.7% C 0.197 H 131.0°. Best body text is #000000 at 16.72:1 contrast (WCAG AA passes).

Color values

HEX	#B1FA61
RGB	rgb(177, 250, 97)
HSL	hsl(89, 94%, 68%)
HSV	hsv(89, 61%, 98%)
CMYK	cmyk(29.2%, 0%, 61.2%, 2%)
CIE-LAB	lab(91.04, -46.07, 64.41)
CIE-LCH	lch(91.04, 79.19, 125.57°)
OKLab	oklab(90.71% -0.1294 0.1488)
OKLCH	oklch(90.71% 0.197 131)
XYZ	xyz(54.4742, 78.5797, 23.6043)
Luminance	0.7858 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

#A9F971

ΔE00 2.55

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1FA61 #AA61FA

analogous

#FAF661 #B1FA61 #65FA61

triadic

#B1FA61 #61B1FA #FA61B1

tetradic

#B1FA61 #61FAF6 #AA61FA #FA6165

square

#B1FA61 #61FAF6 #AA61FA #FA6165

split-complementary

#B1FA61 #6165FA #F661FA

monochromatic

#75DA07 #94F826 #B1FA61 #CEFC9C #ECFED8

Accessibility & contrast

On white

1.26

#B1FA61 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.72

#B1FA61 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1FA61

16.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1FA61	#FFFFFF	#000000	##000000
##B1FA61	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)

#FFE94F

Deuteranopia (green-blind)

#FAE36D

Tritanopia (blue-blind)

#B4F0DA

Achromatopsia (no color)

#E5E5E5

Design tokens & code

CSS

--color: #b1fa61;
/* rgb */ color: rgb(177, 250, 97);
/* oklch */ color: oklch(90.7% 0.197 131.0);

Tailwind

colors: {
  custom: {
    50: '#ccfc94',
    500: '#b1fa61',
    950: '#000000',
  },
}

SCSS

$custom: #b1fa61;
$custom-light: #ccfc94;
$custom-dark: #000000;

JSON

{
  "hex": "#b1fa61",
  "rgb": {
    "r": 177,
    "g": 250,
    "b": 97
  },
  "hsl": {
    "h": 88.627,
    "s": 93.865,
    "l": 68.039
  },
  "oklch": {
    "l": 0.90712,
    "c": 0.1972,
    "h": 131
  },
  "luminance": 0.78581
}

Semantic roles & 50–950 ramp

primary

#B1FA61

secondary

#7C2CD3

accent

#00E66D

background

#FEFFFC

surface

#FBFFF5

border

#D4D7CF

text

#14170D

muted

#83857F

Preview Lab

Preview with #B1FA61

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

Preview Lab → · Contrast checker → · Palette generator →