#B1E55B#B1E55B

#B1E55B is a very light, vivid yellow-green. Relative luminance 0.661; OKLCH L 85.8% C 0.175 H 127.2°. Best body text is #000000 at 14.23:1 contrast (WCAG AA passes).

Color values

HEX	#B1E55B
RGB	rgb(177, 229, 91)
HSL	hsl(83, 73%, 63%)
HSV	hsv(83, 60%, 90%)
CMYK	cmyk(22.7%, 0%, 60.3%, 10.2%)
CIE-LAB	lab(85.07, -37.36, 60.32)
CIE-LCH	lch(85.07, 70.95, 121.77°)
OKLab	oklab(85.85% -0.1059 0.1395)
OKLCH	oklch(85.85% 0.175 127.2)
XYZ	xyz(48.0391, 66.1403, 20.1309)
Luminance	0.6614 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

#A9F971

ΔE00 5.54

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1E55B #8F5BE5

analogous

#E5D45B #B1E55B #6CE55B

triadic

#B1E55B #5BB1E5 #E55BB1

tetradic

#B1E55B #5BE5D4 #8F5BE5 #E55B6C

square

#B1E55B #5BE5D4 #8F5BE5 #E55B6C

split-complementary

#B1E55B #5B6CE5 #D45BE5

monochromatic

#74AB1B #98DD26 #B1E55B #CAED90 #E3F6C5

Accessibility & contrast

On white

1.48

#B1E55B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.23

#B1E55B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1E55B

14.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1E55B	#FFFFFF	#000000	##000000
##B1E55B	1.00	1.48	14.23	14.23
#FFFFFF	1.48	1.00	21.00	21.00
#000000	14.23	21.00	1.00	1.00
##000000	14.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F0D74B

Deuteranopia (green-blind)

#E9D465

Tritanopia (blue-blind)

#B7DBC8

Achromatopsia (no color)

#D4D4D4

Design tokens & code

CSS

--color: #b1e55b;
/* rgb */ color: rgb(177, 229, 91);
/* oklch */ color: oklch(85.8% 0.175 127.2);

Tailwind

colors: {
  custom: {
    50: '#cbed8e',
    500: '#b1e55b',
    950: '#000000',
  },
}

SCSS

$custom: #b1e55b;
$custom-light: #cbed8e;
$custom-dark: #000000;

JSON

{
  "hex": "#b1e55b",
  "rgb": {
    "r": 177,
    "g": 229,
    "b": 91
  },
  "hsl": {
    "h": 82.609,
    "s": 72.632,
    "l": 62.745
  },
  "oklch": {
    "l": 0.85849,
    "c": 0.17509,
    "h": 127.2
  },
  "luminance": 0.66141
}

Semantic roles & 50–950 ramp

primary

#B1E55B

secondary

#6438AC

accent

#11D55B

background

#FEFFFC

surface

#FBFEF4

border

#D4D6CE

text

#14160D

muted

#83857F

Preview Lab

Preview with #B1E55B

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

Preview Lab → · Contrast checker → · Palette generator →