#B1E651#B1E651

#B1E651 is a very light, vivid yellow-green. Relative luminance 0.665; OKLCH L 86.0% C 0.184 H 126.8°. Best body text is #000000 at 14.31:1 contrast (WCAG AA passes).

Color values

HEX	#B1E651
RGB	rgb(177, 230, 81)
HSL	hsl(81, 75%, 61%)
HSV	hsv(81, 65%, 90%)
CMYK	cmyk(23%, 0%, 64.8%, 9.8%)
CIE-LAB	lab(85.27, -38.57, 64.63)
CIE-LCH	lch(85.27, 75.26, 120.83°)
OKLab	oklab(85.99% -0.1101 0.1474)
OKLCH	oklch(85.99% 0.184 126.8)
XYZ	xyz(47.9136, 66.5340, 18.1010)
Luminance	0.6653 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1E651 #8651E6

analogous

#E6D051 #B1E651 #66E651

triadic

#B1E651 #51B1E6 #E651B1

tetradic

#B1E651 #51E6D0 #8651E6 #E65166

square

#B1E651 #51E6D0 #8651E6 #E65166

split-complementary

#B1E651 #5166E6 #D051E6

monochromatic

#73A518 #98DA1F #B1E651 #C9EE87 #E1F5BC

Accessibility & contrast

On white

1.47

#B1E651 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.31

#B1E651 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1E651

14.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1E651	#FFFFFF	#000000	##000000
##B1E651	1.00	1.47	14.31	14.31
#FFFFFF	1.47	1.00	21.00	21.00
#000000	14.31	21.00	1.00	1.00
##000000	14.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F1D73D

Deuteranopia (green-blind)

#EAD45D

Tritanopia (blue-blind)

#B8DCC7

Achromatopsia (no color)

#D5D5D5

Design tokens & code

CSS

--color: #b1e651;
/* rgb */ color: rgb(177, 230, 81);
/* oklch */ color: oklch(86.0% 0.184 126.8);

Tailwind

colors: {
  custom: {
    50: '#ccee89',
    500: '#b1e651',
    950: '#000000',
  },
}

SCSS

$custom: #b1e651;
$custom-light: #ccee89;
$custom-dark: #000000;

JSON

{
  "hex": "#b1e651",
  "rgb": {
    "r": 177,
    "g": 230,
    "b": 81
  },
  "hsl": {
    "h": 81.342,
    "s": 74.874,
    "l": 60.98
  },
  "oklch": {
    "l": 0.85985,
    "c": 0.18392,
    "h": 126.8
  },
  "luminance": 0.66535
}

Semantic roles & 50–950 ramp

primary

#B1E651

secondary

#5D34A7

accent

#0ED756

background

#FEFFFC

surface

#FBFEF4

border

#D4D6CE

text

#14160C

muted

#83857F

Preview Lab

Preview with #B1E651

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

Preview Lab → · Contrast checker → · Palette generator →