#B9EF5B#B9EF5B

#B9EF5B is a very light, vivid yellow-green. Relative luminance 0.728; OKLCH L 88.6% C 0.184 H 126.9°. Best body text is #000000 at 15.56:1 contrast (WCAG AA passes).

Color values

HEX	#B9EF5B
RGB	rgb(185, 239, 91)
HSL	hsl(82, 82%, 65%)
HSV	hsv(82, 62%, 94%)
CMYK	cmyk(22.6%, 0%, 61.9%, 6.3%)
CIE-LAB	lab(88.35, -38.87, 64.06)
CIE-LCH	lch(88.35, 74.93, 121.25°)
OKLab	oklab(88.63% -0.1105 0.1473)
OKLCH	oklch(88.63% 0.184 126.9)
XYZ	xyz(52.7624, 72.8018, 21.1679)
Luminance	0.7280 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B9EF5B #915BEF

analogous

#EFDB5B #B9EF5B #6FEF5B

triadic

#B9EF5B #5BB9EF #EF5BB9

tetradic

#B9EF5B #5BEFDB #915BEF #EF5B6F

square

#B9EF5B #5BEFDB #915BEF #EF5B6F

split-complementary

#B9EF5B #5B6FEF #DB5BEF

monochromatic

#7FBD12 #A1EA23 #B9EF5B #D1F493 #E9FACB

Accessibility & contrast

On white

1.35

#B9EF5B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.56

#B9EF5B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B9EF5B

15.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B9EF5B	#FFFFFF	#000000	##000000
##B9EF5B	1.00	1.35	15.56	15.56
#FFFFFF	1.35	1.00	21.00	21.00
#000000	15.56	21.00	1.00	1.00
##000000	15.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FBE049

Deuteranopia (green-blind)

#F3DD66

Tritanopia (blue-blind)

#C0E5D0

Achromatopsia (no color)

#DEDEDE

Design tokens & code

CSS

--color: #b9ef5b;
/* rgb */ color: rgb(185, 239, 91);
/* oklch */ color: oklch(88.6% 0.184 126.9);

Tailwind

colors: {
  custom: {
    50: '#d1f48f',
    500: '#b9ef5b',
    950: '#000000',
  },
}

SCSS

$custom: #b9ef5b;
$custom-light: #d1f48f;
$custom-dark: #000000;

JSON

{
  "hex": "#b9ef5b",
  "rgb": {
    "r": 185,
    "g": 239,
    "b": 91
  },
  "hsl": {
    "h": 81.892,
    "s": 82.222,
    "l": 64.706
  },
  "oklch": {
    "l": 0.88631,
    "c": 0.18412,
    "h": 126.9
  },
  "luminance": 0.72803
}

Semantic roles & 50–950 ramp

primary

#B9EF5B

secondary

#6533BC

accent

#07DF56

background

#FEFFFC

surface

#FBFEF4

border

#D4D6CE

text

#14170D

muted

#83857F

Preview Lab

Preview with #B9EF5B

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

Preview Lab → · Contrast checker → · Palette generator →