#B9E03B#B9E03B

#B9E03B is a very light, vivid yellow-green. Relative luminance 0.639; OKLCH L 85.0% C 0.187 H 122.3°. Best body text is #000000 at 13.79:1 contrast (WCAG AA passes).

Color values

HEX	#B9E03B
RGB	rgb(185, 224, 59)
HSL	hsl(74, 73%, 55%)
HSV	hsv(74, 74%, 88%)
CMYK	cmyk(17.4%, 0%, 73.7%, 12.2%)
CIE-LAB	lab(83.94, -34.10, 71.41)
CIE-LCH	lch(83.94, 79.13, 115.53°)
OKLab	oklab(84.99% -0.1001 0.1582)
OKLCH	oklch(84.99% 0.187 122.3)
XYZ	xyz(47.4533, 63.9412, 13.9788)
Luminance	0.6394 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B9E03B #623BE0

analogous

#E0B53B #B9E03B #66E03B

triadic

#B9E03B #3BB9E0 #E03BB9

tetradic

#B9E03B #3BE0B5 #623BE0 #E03B66

square

#B9E03B #3BE0B5 #623BE0 #E03B66

split-complementary

#B9E03B #3B66E0 #B53BE0

monochromatic

#6F8B16 #99C01E #B9E03B #CCE870 #DFF1A5

Accessibility & contrast

On white

1.52

#B9E03B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.79

#B9E03B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B9E03B

13.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B9E03B	#FFFFFF	#000000	##000000
##B9E03B	1.00	1.52	13.79	13.79
#FFFFFF	1.52	1.00	21.00	21.00
#000000	13.79	21.00	1.00	1.00
##000000	13.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EDD216

Deuteranopia (green-blind)

#E8D14A

Tritanopia (blue-blind)

#C3D5C1

Achromatopsia (no color)

#D1D1D1

Design tokens & code

CSS

--color: #b9e03b;
/* rgb */ color: rgb(185, 224, 59);
/* oklch */ color: oklch(85.0% 0.187 122.3);

Tailwind

colors: {
  custom: {
    50: '#d2e97d',
    500: '#b9e03b',
    950: '#000000',
  },
}

SCSS

$custom: #b9e03b;
$custom-light: #d2e97d;
$custom-dark: #000000;

JSON

{
  "hex": "#b9e03b",
  "rgb": {
    "r": 185,
    "g": 224,
    "b": 59
  },
  "hsl": {
    "h": 74.182,
    "s": 72.687,
    "l": 55.49
  },
  "oklch": {
    "l": 0.8499,
    "c": 0.18721,
    "h": 122.3
  },
  "luminance": 0.63941
}

Semantic roles & 50–950 ramp

primary

#B9E03B

secondary

#462F90

accent

#38EF64

background

#FEFEFB

surface

#FBFDF2

border

#D4D5CC

text

#15160A

muted

#84847D

Preview Lab

Preview with #B9E03B

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

Preview Lab → · Contrast checker → · Palette generator →