#B1EF66#B1EF66

#B1EF66 is a very light, vivid yellow-green. Relative luminance 0.720; OKLCH L 88.2% C 0.179 H 129.8°. Best body text is #000000 at 15.41:1 contrast (WCAG AA passes).

Color values

HEX	#B1EF66
RGB	rgb(177, 239, 102)
HSL	hsl(87, 81%, 67%)
HSV	hsv(87, 57%, 94%)
CMYK	cmyk(25.9%, 0%, 57.3%, 6.3%)
CIE-LAB	lab(87.99, -40.87, 58.87)
CIE-LCH	lch(87.99, 71.67, 124.77°)
OKLab	oklab(88.25% -0.1147 0.1375)
OKLCH	oklch(88.25% 0.179 129.8)
XYZ	xyz(51.3958, 72.0382, 23.7647)
Luminance	0.7204 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Pale Lime

#BEFD73

ΔE00 2.99

Spring Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1EF66 #A466EF

analogous

#EFE866 #B1EF66 #6DEF66

triadic

#B1EF66 #66B1EF #EF66B1

tetradic

#B1EF66 #66EFE8 #A466EF #EF666D

square

#B1EF66 #66EFE8 #A466EF #EF666D

split-complementary

#B1EF66 #666DEF #E866EF

monochromatic

#76C615 #95E92F #B1EF66 #CDF59D #E9FBD5

Accessibility & contrast

On white

1.36

#B1EF66 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.41

#B1EF66 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1EF66

15.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1EF66	#FFFFFF	#000000	##000000
##B1EF66	1.00	1.36	15.41	15.41
#FFFFFF	1.36	1.00	21.00	21.00
#000000	15.41	21.00	1.00	1.00
##000000	15.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F9E058

Deuteranopia (green-blind)

#F0DB70

Tritanopia (blue-blind)

#B5E6D1

Achromatopsia (no color)

#DDDDDD

Design tokens & code

CSS

--color: #b1ef66;
/* rgb */ color: rgb(177, 239, 102);
/* oklch */ color: oklch(88.2% 0.179 129.8);

Tailwind

colors: {
  custom: {
    50: '#cbf496',
    500: '#b1ef66',
    950: '#000000',
  },
}

SCSS

$custom: #b1ef66;
$custom-light: #cbf496;
$custom-dark: #000000;

JSON

{
  "hex": "#b1ef66",
  "rgb": {
    "r": 177,
    "g": 239,
    "b": 102
  },
  "hsl": {
    "h": 87.153,
    "s": 81.065,
    "l": 66.863
  },
  "oklch": {
    "l": 0.88246,
    "c": 0.17905,
    "h": 129.8
  },
  "luminance": 0.72039
}

Semantic roles & 50–950 ramp

primary

#B1EF66

secondary

#7636C3

accent

#08DD69

background

#FEFFFC

surface

#FBFEF5

border

#D4D6CF

text

#14170E

muted

#83857F

Preview Lab

Preview with #B1EF66

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

Preview Lab → · Contrast checker → · Palette generator →