#B9EF59#B9EF59

#B9EF59 is a very light, vivid yellow-green. Relative luminance 0.728; OKLCH L 88.6% C 0.186 H 126.8°. Best body text is #000000 at 15.55:1 contrast (WCAG AA passes).

Color values

HEX#B9EF59
RGBrgb(185, 239, 89)
HSLhsl(82, 82%, 64%)
HSVhsv(82, 63%, 94%)
CMYKcmyk(22.6%, 0%, 62.8%, 6.3%)
CIE-LABlab(88.34, -39.02, 64.85)
CIE-LCHlch(88.34, 75.69, 121.03°)
OKLaboklab(88.61% -0.1111 0.1487)
OKLCHoklch(88.61% 0.186 126.8)
XYZxyz(52.6773, 72.7677, 20.7195)
Luminance0.7277 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#B9EF59 #8F59EF
analogous
#EFDA59 #B9EF59 #6EEF59
triadic
#B9EF59 #59B9EF #EF59B9
tetradic
#B9EF59 #59EFDA #8F59EF #EF596E
square
#B9EF59 #59EFDA #8F59EF #EF596E
split-complementary
#B9EF59 #596EEF #DA59EF
monochromatic
#7FBC12 #A1EA21 #B9EF59 #D1F491 #E8FAC9

Accessibility & contrast

On white

1.35
#B9EF59 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

15.55
#B9EF59 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B9EF59
15.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##B9EF59#FFFFFF#000000##000000
##B9EF591.001.3515.5515.55
#FFFFFF1.351.0021.0021.00
#00000015.5521.001.001.00
##00000015.5521.001.001.00

Color blindness preview

Protanopia (red-blind)
#FBE046
Deuteranopia (green-blind)
#F3DD64
Tritanopia (blue-blind)
#C0E5D0
Achromatopsia (no color)
#DEDEDE

Design tokens & code

CSS
--color: #b9ef59;
/* rgb */ color: rgb(185, 239, 89);
/* oklch */ color: oklch(88.6% 0.186 126.8);
Tailwind
colors: {
  custom: {
    50: '#d1f48e',
    500: '#b9ef59',
    950: '#000000',
  },
}
SCSS
$custom: #b9ef59;
$custom-light: #d1f48e;
$custom-dark: #000000;
JSON
{
  "hex": "#b9ef59",
  "rgb": {
    "r": 185,
    "g": 239,
    "b": 89
  },
  "hsl": {
    "h": 81.6,
    "s": 82.418,
    "l": 64.314
  },
  "oklch": {
    "l": 0.88613,
    "c": 0.18562,
    "h": 126.8
  },
  "luminance": 0.72769
}

Semantic roles & 50–950 ramp

primary
#B9EF59
secondary
#6332BA
accent
#07DF54
background
#FEFFFC
surface
#FBFEF4
border
#D4D6CE
text
#14170D
muted
#83857F

Preview Lab

Preview with #B9EF59

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

Preview Lab → · Contrast checker → · Palette generator →

#B9EF59 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva