#B5D538#B5D538

#B5D538 is a very light, vivid yellow-green. Relative luminance 0.577; OKLCH L 82.2% C 0.178 H 120.7°. Best body text is #000000 at 12.54:1 contrast (WCAG AA passes).

Color values

HEX	#B5D538
RGB	rgb(181, 213, 56)
HSL	hsl(72, 65%, 53%)
HSV	hsv(72, 74%, 84%)
CMYK	cmyk(15%, 0%, 73.7%, 16.5%)
CIE-LAB	lab(80.57, -30.74, 69.08)
CIE-LCH	lch(80.57, 75.62, 113.99°)
OKLab	oklab(82.2% -0.0909 0.153)
OKLCH	oklch(82.2% 0.178 120.7)
XYZ	xyz(43.5649, 57.6979, 12.5824)
Luminance	0.5770 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B5D538 #5838D5

analogous

#D5A638 #B5D538 #67D538

triadic

#B5D538 #38B5D5 #D538B5

tetradic

#B5D538 #38D5A6 #5838D5 #D53867

square

#B5D538 #38D5A6 #5838D5 #D53867

split-complementary

#B5D538 #3867D5 #A638D5

monochromatic

#66791A #90AC24 #B5D538 #C8E06B #DBEA9D

Accessibility & contrast

On white

1.67

#B5D538 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.54

#B5D538 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B5D538

12.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B5D538	#FFFFFF	#000000	##000000
##B5D538	1.00	1.67	12.54	12.54
#FFFFFF	1.67	1.00	21.00	21.00
#000000	12.54	21.00	1.00	1.00
##000000	12.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E2C816

Deuteranopia (green-blind)

#DEC846

Tritanopia (blue-blind)

#BFCAB7

Achromatopsia (no color)

#C8C8C8

Design tokens & code

CSS

--color: #b5d538;
/* rgb */ color: rgb(181, 213, 56);
/* oklch */ color: oklch(82.2% 0.178 120.7);

Tailwind

colors: {
  custom: {
    50: '#cfe27a',
    500: '#b5d538',
    950: '#000000',
  },
}

SCSS

$custom: #b5d538;
$custom-light: #cfe27a;
$custom-dark: #000000;

JSON

{
  "hex": "#b5d538",
  "rgb": {
    "r": 181,
    "g": 213,
    "b": 56
  },
  "hsl": {
    "h": 72.229,
    "s": 65.145,
    "l": 52.745
  },
  "oklch": {
    "l": 0.82202,
    "c": 0.1779,
    "h": 120.7
  },
  "luminance": 0.57698
}

Semantic roles & 50–950 ramp

primary

#B5D538

secondary

#413081

accent

#40E862

background

#FEFEFB

surface

#FBFCF2

border

#D4D5CC

text

#14150A

muted

#83847D

Preview Lab

Preview with #B5D538

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

Preview Lab → · Contrast checker → · Palette generator →