#B1F471#B1F471

#B1F471 is a very light, vivid yellow-green. Relative luminance 0.752; OKLCH L 89.5% C 0.176 H 131.6°. Best body text is #000000 at 16.05:1 contrast (WCAG AA passes).

Color values

HEX	#B1F471
RGB	rgb(177, 244, 113)
HSL	hsl(91, 86%, 70%)
HSV	hsv(91, 54%, 96%)
CMYK	cmyk(27.5%, 0%, 53.7%, 4.3%)
CIE-LAB	lab(89.50, -42.03, 55.75)
CIE-LCH	lch(89.50, 69.82, 127.01°)
OKLab	oklab(89.51% -0.117 0.1318)
OKLCH	oklch(89.51% 0.176 131.6)
XYZ	xyz(53.4621, 75.2392, 27.3254)
Luminance	0.7524 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1F471 #B471F4

analogous

#F3F471 #B1F471 #71F472

triadic

#B1F471 #71B1F4 #F471B1

tetradic

#B1F471 #71F3F4 #B471F4 #F47271

square

#B1F471 #71F3F4 #B471F4 #F47271

split-complementary

#B1F471 #7271F4 #F471F3

monochromatic

#73DA11 #92F038 #B1F471 #D0F8AA #EFFDE3

Accessibility & contrast

On white

1.31

#B1F471 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.05

#B1F471 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1F471

16.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1F471	#FFFFFF	#000000	##000000
##B1F471	1.00	1.31	16.05	16.05
#FFFFFF	1.31	1.00	21.00	21.00
#000000	16.05	21.00	1.00	1.00
##000000	16.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FDE464

Deuteranopia (green-blind)

#F4DF7A

Tritanopia (blue-blind)

#B3EBD7

Achromatopsia (no color)

#E1E1E1

Design tokens & code

CSS

--color: #b1f471;
/* rgb */ color: rgb(177, 244, 113);
/* oklch */ color: oklch(89.5% 0.176 131.6);

Tailwind

colors: {
  custom: {
    50: '#cbf89d',
    500: '#b1f471',
    950: '#000000',
  },
}

SCSS

$custom: #b1f471;
$custom-light: #cbf89d;
$custom-dark: #000000;

JSON

{
  "hex": "#b1f471",
  "rgb": {
    "r": 177,
    "g": 244,
    "b": 113
  },
  "hsl": {
    "h": 90.687,
    "s": 85.621,
    "l": 70
  },
  "oklch": {
    "l": 0.89512,
    "c": 0.17624,
    "h": 131.6
  },
  "luminance": 0.75241
}

Semantic roles & 50–950 ramp

primary

#B1F471

secondary

#863BCE

accent

#03E275

background

#FEFFFC

surface

#FBFFF5

border

#D4D7CF

text

#14170F

muted

#838580

Preview Lab

Preview with #B1F471

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

Preview Lab → · Contrast checker → · Palette generator →