#B1EF5A#B1EF5A

#B1EF5A is a very light, vivid yellow-green. Relative luminance 0.718; OKLCH L 88.1% C 0.189 H 128.9°. Best body text is #000000 at 15.36:1 contrast (WCAG AA passes).

Color values

HEX#B1EF5A
RGBrgb(177, 239, 90)
HSLhsl(85, 82%, 65%)
HSVhsv(85, 62%, 94%)
CMYKcmyk(25.9%, 0%, 62.3%, 6.3%)
CIE-LABlab(87.88, -41.88, 63.82)
CIE-LCHlch(87.88, 76.33, 123.27°)
OKLaboklab(88.13% -0.1184 0.1468)
OKLCHoklch(88.13% 0.189 128.9)
XYZxyz(50.8432, 71.8171, 20.8542)
Luminance0.7182 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#B1EF5A #985AEF
analogous
#EFE25A #B1EF5A #67EF5A
triadic
#B1EF5A #5AB1EF #EF5AB1
tetradic
#B1EF5A #5AEFE2 #985AEF #EF5A67
square
#B1EF5A #5AEFE2 #985AEF #EF5A67
split-complementary
#B1EF5A #5A67EF #E25AEF
monochromatic
#76BC12 #97EA22 #B1EF5A #CBF492 #E6FACA

Accessibility & contrast

On white

1.37
#B1EF5A on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

15.36
#B1EF5A on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1EF5A
15.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##B1EF5A#FFFFFF#000000##000000
##B1EF5A1.001.3715.3615.36
#FFFFFF1.371.0021.0021.00
#00000015.3621.001.001.00
##00000015.3621.001.001.00

Color blindness preview

Protanopia (red-blind)
#FADF48
Deuteranopia (green-blind)
#F1DB65
Tritanopia (blue-blind)
#B6E5D0
Achromatopsia (no color)
#DCDCDC

Design tokens & code

CSS
--color: #b1ef5a;
/* rgb */ color: rgb(177, 239, 90);
/* oklch */ color: oklch(88.1% 0.189 128.9);
Tailwind
colors: {
  custom: {
    50: '#ccf48f',
    500: '#b1ef5a',
    950: '#000000',
  },
}
SCSS
$custom: #b1ef5a;
$custom-light: #ccf48f;
$custom-dark: #000000;
JSON
{
  "hex": "#b1ef5a",
  "rgb": {
    "r": 177,
    "g": 239,
    "b": 90
  },
  "hsl": {
    "h": 84.966,
    "s": 82.32,
    "l": 64.51
  },
  "oklch": {
    "l": 0.88125,
    "c": 0.18858,
    "h": 128.9
  },
  "luminance": 0.71818
}

Semantic roles & 50–950 ramp

primary
#B1EF5A
secondary
#6B32BB
accent
#07DF61
background
#FEFFFC
surface
#FBFEF4
border
#D4D6CE
text
#14170D
muted
#83857F

Preview Lab

Preview with #B1EF5A

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

Preview Lab → · Contrast checker → · Palette generator →

#B1EF5A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva