#B1E45B#B1E45B

#B1E45B is a very light, vivid yellow-green. Relative luminance 0.656; OKLCH L 85.6% C 0.174 H 127.0°. Best body text is #000000 at 14.12:1 contrast (WCAG AA passes).

Color values

HEX	#B1E45B
RGB	rgb(177, 228, 91)
HSL	hsl(82, 72%, 63%)
HSV	hsv(82, 60%, 89%)
CMYK	cmyk(22.4%, 0%, 60.1%, 10.6%)
CIE-LAB	lab(84.79, -36.91, 60.01)
CIE-LCH	lch(84.79, 70.45, 121.59°)
OKLab	oklab(85.62% -0.1046 0.1388)
OKLCH	oklch(85.62% 0.174 127)
XYZ	xyz(47.7632, 65.5885, 20.0390)
Luminance	0.6559 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

#A9F971

ΔE00 5.74

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1E45B #8E5BE4

analogous

#E4D35B #B1E45B #6CE45B

triadic

#B1E45B #5BB1E4 #E45BB1

tetradic

#B1E45B #5BE4D3 #8E5BE4 #E45B6C

square

#B1E45B #5BE4D3 #8E5BE4 #E45B6C

split-complementary

#B1E45B #5B6CE4 #D35BE4

monochromatic

#74A91C #98DB26 #B1E45B #CAED90 #E3F5C4

Accessibility & contrast

On white

1.49

#B1E45B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.12

#B1E45B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1E45B

14.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1E45B	#FFFFFF	#000000	##000000
##B1E45B	1.00	1.49	14.12	14.12
#FFFFFF	1.49	1.00	21.00	21.00
#000000	14.12	21.00	1.00	1.00
##000000	14.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EFD64B

Deuteranopia (green-blind)

#E8D365

Tritanopia (blue-blind)

#B7DAC7

Achromatopsia (no color)

#D4D4D4

Design tokens & code

CSS

--color: #b1e45b;
/* rgb */ color: rgb(177, 228, 91);
/* oklch */ color: oklch(85.6% 0.174 127.0);

Tailwind

colors: {
  custom: {
    50: '#cbec8e',
    500: '#b1e45b',
    950: '#000000',
  },
}

SCSS

$custom: #b1e45b;
$custom-light: #cbec8e;
$custom-dark: #000000;

JSON

{
  "hex": "#b1e45b",
  "rgb": {
    "r": 177,
    "g": 228,
    "b": 91
  },
  "hsl": {
    "h": 82.336,
    "s": 71.728,
    "l": 62.549
  },
  "oklch": {
    "l": 0.85621,
    "c": 0.1738,
    "h": 127
  },
  "luminance": 0.65589
}

Semantic roles & 50–950 ramp

primary

#B1E45B

secondary

#6339AB

accent

#12D45A

background

#FEFEFC

surface

#FBFDF4

border

#D4D5CE

text

#14160D

muted

#83847F

Preview Lab

Preview with #B1E45B

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

Preview Lab → · Contrast checker → · Palette generator →