#B1FE81#B1FE81

#B1FE81 is a very light, vivid yellow-green. Relative luminance 0.818; OKLCH L 92.0% C 0.175 H 134.7°. Best body text is #000000 at 17.36:1 contrast (WCAG AA passes).

Color values

HEX#B1FE81
RGBrgb(177, 254, 129)
HSLhsl(97, 98%, 75%)
HSVhsv(97, 49%, 100%)
CMYKcmyk(30.3%, 0%, 49.2%, 0.4%)
CIE-LABlab(92.49, -44.68, 52.00)
CIE-LCHlch(92.49, 68.56, 130.67°)
OKLaboklab(91.99% -0.1233 0.1247)
OKLCHoklch(91.99% 0.175 134.7)
XYZxyz(57.5345, 81.8136, 33.5248)
Luminance0.8182 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#B1FE81 #CE81FE
analogous
#EFFE81 #B1FE81 #81FE8F
triadic
#B1FE81 #81B1FE #FE81B1
tetradic
#B1FE81 #81EFFE #CE81FE #FE8F81
square
#B1FE81 #81EFFE #CE81FE #FE8F81
split-complementary
#B1FE81 #8F81FE #FE81EF
monochromatic
#66FD08 #8BFE44 #B1FE81 #D7FEBE #ECFFE1

Accessibility & contrast

On white

1.21
#B1FE81 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

17.36
#B1FE81 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1FE81
17.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##B1FE81#FFFFFF#000000##000000
##B1FE811.001.2117.3617.36
#FFFFFF1.211.0021.0021.00
#00000017.3621.001.001.00
##00000017.3621.001.001.00

Color blindness preview

Protanopia (red-blind)
#FFEE76
Deuteranopia (green-blind)
#FBE789
Tritanopia (blue-blind)
#B0F6E1
Achromatopsia (no color)
#E9E9E9

Design tokens & code

CSS
--color: #b1fe81;
/* rgb */ color: rgb(177, 254, 129);
/* oklch */ color: oklch(92.0% 0.175 134.7);
Tailwind
colors: {
  custom: {
    50: '#cbffa8',
    500: '#b1fe81',
    950: '#000000',
  },
}
SCSS
$custom: #b1fe81;
$custom-light: #cbffa8;
$custom-dark: #000000;
JSON
{
  "hex": "#b1fe81",
  "rgb": {
    "r": 177,
    "g": 254,
    "b": 129
  },
  "hsl": {
    "h": 96.96,
    "s": 98.425,
    "l": 75.098
  },
  "oklch": {
    "l": 0.91992,
    "c": 0.17537,
    "h": 134.7
  },
  "luminance": 0.81816
}

Semantic roles & 50–950 ramp

primary
#B1FE81
secondary
#A346DD
accent
#00E68D
background
#FEFFFD
surface
#FBFFF7
border
#D4D7D0
text
#141810
muted
#838681

Preview Lab

Preview with #B1FE81

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

Preview Lab → · Contrast checker → · Palette generator →

#B1FE81 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva