#B9F251#B9F251

#B9F251 is a very light, vivid yellow-green. Relative luminance 0.744; OKLCH L 89.2% C 0.195 H 126.9°. Best body text is #000000 at 15.88:1 contrast (WCAG AA passes).

Color values

HEX	#B9F251
RGB	rgb(185, 242, 81)
HSL	hsl(81, 86%, 63%)
HSV	hsv(81, 67%, 95%)
CMYK	cmyk(23.6%, 0%, 66.5%, 5.1%)
CIE-LAB	lab(89.12, -40.91, 68.81)
CIE-LCH	lch(89.12, 80.05, 120.73°)
OKLab	oklab(89.23% -0.117 0.156)
OKLCH	oklch(89.23% 0.195 126.9)
XYZ	xyz(53.2450, 74.4117, 19.3407)
Luminance	0.7441 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B9F251 #8A51F2

analogous

#F2DA51 #B9F251 #68F251

triadic

#B9F251 #51B9F2 #F251B9

tetradic

#B9F251 #51F2DA #8A51F2 #F25168

square

#B9F251 #51F2DA #8A51F2 #F25168

split-complementary

#B9F251 #5168F2 #DA51F2

monochromatic

#7EBB0E #A2EE18 #B9F251 #D0F68A #E7FBC3

Accessibility & contrast

On white

1.32

#B9F251 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.88

#B9F251 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B9F251

15.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B9F251	#FFFFFF	#000000	##000000
##B9F251	1.00	1.32	15.88	15.88
#FFFFFF	1.32	1.00	21.00	21.00
#000000	15.88	21.00	1.00	1.00
##000000	15.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FEE23A

Deuteranopia (green-blind)

#F6DF5E

Tritanopia (blue-blind)

#C0E7D2

Achromatopsia (no color)

#E0E0E0

Design tokens & code

CSS

--color: #b9f251;
/* rgb */ color: rgb(185, 242, 81);
/* oklch */ color: oklch(89.2% 0.195 126.9);

Tailwind

colors: {
  custom: {
    50: '#d2f68a',
    500: '#b9f251',
    950: '#000000',
  },
}

SCSS

$custom: #b9f251;
$custom-light: #d2f68a;
$custom-dark: #000000;

JSON

{
  "hex": "#b9f251",
  "rgb": {
    "r": 185,
    "g": 242,
    "b": 81
  },
  "hsl": {
    "h": 81.242,
    "s": 86.096,
    "l": 63.333
  },
  "oklch": {
    "l": 0.89225,
    "c": 0.195,
    "h": 126.9
  },
  "luminance": 0.74413
}

Semantic roles & 50–950 ramp

primary

#B9F251

secondary

#5F2EB9

accent

#03E352

background

#FEFFFC

surface

#FBFEF4

border

#D4D6CE

text

#14170C

muted

#83857F

Preview Lab

Preview with #B9F251

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

Preview Lab → · Contrast checker → · Palette generator →