#B1F45A#B1F45A

#B1F45A is a very light, vivid yellow-green. Relative luminance 0.748; OKLCH L 89.3% C 0.195 H 129.7°. Best body text is #000000 at 15.96:1 contrast (WCAG AA passes).

Color values

HEX	#B1F45A
RGB	rgb(177, 244, 90)
HSL	hsl(86, 88%, 65%)
HSV	hsv(86, 63%, 96%)
CMYK	cmyk(27.5%, 0%, 63.1%, 4.3%)
CIE-LAB	lab(89.29, -44.05, 65.35)
CIE-LCH	lch(89.29, 78.81, 123.98°)
OKLab	oklab(89.27% -0.1244 0.15)
OKLCH	oklch(89.27% 0.195 129.7)
XYZ	xyz(52.3273, 74.7853, 21.3489)
Luminance	0.7479 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1F45A #9D5AF4

analogous

#F4EA5A #B1F45A #64F45A

triadic

#B1F45A #5AB1F4 #F45AB1

tetradic

#B1F45A #5AF4EA #9D5AF4 #F45A64

square

#B1F45A #5AF4EA #9D5AF4 #F45A64

split-complementary

#B1F45A #5A64F4 #EA5AF4

monochromatic

#76C60D #96F021 #B1F45A #CCF893 #E7FCCD

Accessibility & contrast

On white

1.32

#B1F45A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.96

#B1F45A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1F45A

15.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1F45A	#FFFFFF	#000000	##000000
##B1F45A	1.00	1.32	15.96	15.96
#FFFFFF	1.32	1.00	21.00	21.00
#000000	15.96	21.00	1.00	1.00
##000000	15.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE347

Deuteranopia (green-blind)

#F5DF66

Tritanopia (blue-blind)

#B5EAD4

Achromatopsia (no color)

#E0E0E0

Design tokens & code

CSS

--color: #b1f45a;
/* rgb */ color: rgb(177, 244, 90);
/* oklch */ color: oklch(89.3% 0.195 129.7);

Tailwind

colors: {
  custom: {
    50: '#ccf88f',
    500: '#b1f45a',
    950: '#000000',
  },
}

SCSS

$custom: #b1f45a;
$custom-light: #ccf88f;
$custom-dark: #000000;

JSON

{
  "hex": "#b1f45a",
  "rgb": {
    "r": 177,
    "g": 244,
    "b": 90
  },
  "hsl": {
    "h": 86.104,
    "s": 87.5,
    "l": 65.49
  },
  "oklch": {
    "l": 0.89271,
    "c": 0.19487,
    "h": 129.7
  },
  "luminance": 0.74787
}

Semantic roles & 50–950 ramp

primary

#B1F45A

secondary

#6F2FC3

accent

#01E464

background

#FEFFFC

surface

#FBFFF4

border

#D4D7CE

text

#14170D

muted

#83857F

Preview Lab

Preview with #B1F45A

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

Preview Lab → · Contrast checker → · Palette generator →