#B5D23B#B5D23B

#B5D23B is a light, vivid yellow-green. Relative luminance 0.562; OKLCH L 81.5% C 0.173 H 120.0°. Best body text is #000000 at 12.25:1 contrast (WCAG AA passes).

Color values

HEX	#B5D23B
RGB	rgb(181, 210, 59)
HSL	hsl(72, 63%, 53%)
HSV	hsv(72, 72%, 82%)
CMYK	cmyk(13.8%, 0%, 71.9%, 17.6%)
CIE-LAB	lab(79.75, -29.18, 67.28)
CIE-LCH	lch(79.75, 73.34, 113.45°)
OKLab	oklab(81.54% -0.0863 0.1496)
OKLCH	oklch(81.54% 0.173 120)
XYZ	xyz(42.8929, 56.2329, 12.7312)
Luminance	0.5623 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B5D23B #583BD2

analogous

#D2A33B #B5D23B #69D23B

triadic

#B5D23B #3BB5D2 #D23BB5

tetradic

#B5D23B #3BD2A3 #583BD2 #D23B69

square

#B5D23B #3BD2A3 #583BD2 #D23B69

split-complementary

#B5D23B #3B69D2 #A33BD2

monochromatic

#66771B #90A927 #B5D23B #C8DD6D #DBE99F

Accessibility & contrast

On white

1.71

#B5D23B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.25

#B5D23B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B5D23B

12.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B5D23B	#FFFFFF	#000000	##000000
##B5D23B	1.00	1.71	12.25	12.25
#FFFFFF	1.71	1.00	21.00	21.00
#000000	12.25	21.00	1.00	1.00
##000000	12.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DFC61E

Deuteranopia (green-blind)

#DCC648

Tritanopia (blue-blind)

#BFC7B5

Achromatopsia (no color)

#C6C6C6

Design tokens & code

CSS

--color: #b5d23b;
/* rgb */ color: rgb(181, 210, 59);
/* oklch */ color: oklch(81.5% 0.173 120.0);

Tailwind

colors: {
  custom: {
    50: '#cfdf7b',
    500: '#b5d23b',
    950: '#000000',
  },
}

SCSS

$custom: #b5d23b;
$custom-light: #cfdf7b;
$custom-dark: #000000;

JSON

{
  "hex": "#b5d23b",
  "rgb": {
    "r": 181,
    "g": 210,
    "b": 59
  },
  "hsl": {
    "h": 71.523,
    "s": 62.656,
    "l": 52.745
  },
  "oklch": {
    "l": 0.81543,
    "c": 0.17275,
    "h": 120
  },
  "luminance": 0.56233
}

Semantic roles & 50–950 ramp

primary

#B5D23B

secondary

#41327F

accent

#42E662

background

#FEFEFB

surface

#FBFCF2

border

#D4D5CC

text

#14150A

muted

#83847D

Preview Lab

Preview with #B5D23B

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

Preview Lab → · Contrast checker → · Palette generator →