#B1E05B#B1E05B

#B1E05B is a very light, vivid yellow-green. Relative luminance 0.634; OKLCH L 84.7% C 0.169 H 126.2°. Best body text is #000000 at 13.68:1 contrast (WCAG AA passes).

Color values

HEX	#B1E05B
RGB	rgb(177, 224, 91)
HSL	hsl(81, 68%, 62%)
HSV	hsv(81, 59%, 88%)
CMYK	cmyk(21%, 0%, 59.4%, 12.2%)
CIE-LAB	lab(83.66, -35.09, 58.75)
CIE-LCH	lch(83.66, 68.43, 120.85°)
OKLab	oklab(84.71% -0.0996 0.1361)
OKLCH	oklch(84.71% 0.169 126.2)
XYZ	xyz(46.6755, 63.4131, 19.6764)
Luminance	0.6341 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1E05B #8A5BE0

analogous

#E0CD5B #B1E05B #6FE05B

triadic

#B1E05B #5BB1E0 #E05BB1

tetradic

#B1E05B #5BE0CD #8A5BE0 #E05B6F

square

#B1E05B #5BE0CD #8A5BE0 #E05B6F

split-complementary

#B1E05B #5B6FE0 #CD5BE0

monochromatic

#74A21F #98D528 #B1E05B #C9EA8E #E2F3C2

Accessibility & contrast

On white

1.53

#B1E05B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.68

#B1E05B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1E05B

13.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1E05B	#FFFFFF	#000000	##000000
##B1E05B	1.00	1.53	13.68	13.68
#FFFFFF	1.53	1.00	21.00	21.00
#000000	13.68	21.00	1.00	1.00
##000000	13.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EBD24C

Deuteranopia (green-blind)

#E4D064

Tritanopia (blue-blind)

#B7D6C4

Achromatopsia (no color)

#D0D0D0

Design tokens & code

CSS

--color: #b1e05b;
/* rgb */ color: rgb(177, 224, 91);
/* oklch */ color: oklch(84.7% 0.169 126.2);

Tailwind

colors: {
  custom: {
    50: '#cbea8e',
    500: '#b1e05b',
    950: '#000000',
  },
}

SCSS

$custom: #b1e05b;
$custom-light: #cbea8e;
$custom-dark: #000000;

JSON

{
  "hex": "#b1e05b",
  "rgb": {
    "r": 177,
    "g": 224,
    "b": 91
  },
  "hsl": {
    "h": 81.203,
    "s": 68.205,
    "l": 61.765
  },
  "oklch": {
    "l": 0.8471,
    "c": 0.16866,
    "h": 126.2
  },
  "luminance": 0.63414
}

Semantic roles & 50–950 ramp

primary

#B1E05B

secondary

#603AA5

accent

#15D057

background

#FEFEFC

surface

#FBFDF4

border

#D4D5CE

text

#14160D

muted

#83847F

Preview Lab

Preview with #B1E05B

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

Preview Lab → · Contrast checker → · Palette generator →