#B1EF61#B1EF61

#B1EF61 is a very light, vivid yellow-green. Relative luminance 0.719; OKLCH L 88.2% C 0.183 H 129.4°. Best body text is #000000 at 15.39:1 contrast (WCAG AA passes).

Color values

HEX	#B1EF61
RGB	rgb(177, 239, 97)
HSL	hsl(86, 82%, 66%)
HSV	hsv(86, 59%, 94%)
CMYK	cmyk(25.9%, 0%, 59.4%, 6.3%)
CIE-LAB	lab(87.94, -41.31, 60.97)
CIE-LCH	lch(87.94, 73.65, 124.12°)
OKLab	oklab(88.19% -0.1163 0.1415)
OKLCH	oklch(88.19% 0.183 129.4)
XYZ	xyz(51.1553, 71.9420, 22.4980)
Luminance	0.7194 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1EF61 #9F61EF

analogous

#EFE661 #B1EF61 #6AEF61

triadic

#B1EF61 #61B1EF #EF61B1

tetradic

#B1EF61 #61EFE6 #9F61EF #EF616A

square

#B1EF61 #61EFE6 #9F61EF #EF616A

split-complementary

#B1EF61 #616AEF #E661EF

monochromatic

#76C214 #96E929 #B1EF61 #CCF599 #E8FAD0

Accessibility & contrast

On white

1.36

#B1EF61 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.39

#B1EF61 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1EF61

15.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1EF61	#FFFFFF	#000000	##000000
##B1EF61	1.00	1.36	15.39	15.39
#FFFFFF	1.36	1.00	21.00	21.00
#000000	15.39	21.00	1.00	1.00
##000000	15.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F9DF51

Deuteranopia (green-blind)

#F1DB6B

Tritanopia (blue-blind)

#B5E5D1

Achromatopsia (no color)

#DDDDDD

Design tokens & code

CSS

--color: #b1ef61;
/* rgb */ color: rgb(177, 239, 97);
/* oklch */ color: oklch(88.2% 0.183 129.4);

Tailwind

colors: {
  custom: {
    50: '#ccf493',
    500: '#b1ef61',
    950: '#000000',
  },
}

SCSS

$custom: #b1ef61;
$custom-light: #ccf493;
$custom-dark: #000000;

JSON

{
  "hex": "#b1ef61",
  "rgb": {
    "r": 177,
    "g": 239,
    "b": 97
  },
  "hsl": {
    "h": 86.197,
    "s": 81.609,
    "l": 65.882
  },
  "oklch": {
    "l": 0.88193,
    "c": 0.18314,
    "h": 129.4
  },
  "luminance": 0.71943
}

Semantic roles & 50–950 ramp

primary

#B1EF61

secondary

#7134C0

accent

#08DE65

background

#FEFFFC

surface

#FBFEF4

border

#D4D6CE

text

#14170D

muted

#83857F

Preview Lab

Preview with #B1EF61

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

Preview Lab → · Contrast checker → · Palette generator →