#B5CA37#B5CA37

#B5CA37 is a light, vivid yellow. Relative luminance 0.523; OKLCH L 79.7% C 0.166 H 117.5°. Best body text is #000000 at 11.47:1 contrast (WCAG AA passes).

Color values

HEX	#B5CA37
RGB	rgb(181, 202, 55)
HSL	hsl(69, 58%, 50%)
HSV	hsv(69, 73%, 79%)
CMYK	cmyk(10.4%, 0%, 72.8%, 20.8%)
CIE-LAB	lab(77.48, -25.57, 66.47)
CIE-LCH	lch(77.48, 71.21, 111.04°)
OKLab	oklab(79.72% -0.0767 0.1473)
OKLCH	oklch(79.72% 0.166 117.5)
XYZ	xyz(40.8671, 52.3411, 11.5637)
Luminance	0.5234 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B5CA37 #4C37CA

analogous

#CA9537 #B5CA37 #6CCA37

triadic

#B5CA37 #37B5CA #CA37B5

tetradic

#B5CA37 #37CA95 #4C37CA #CA376C

square

#B5CA37 #37CA95 #4C37CA #CA376C

split-complementary

#B5CA37 #376CCA #9537CA

monochromatic

#5F6A1C #8B9B29 #B5CA37 #C7D767 #D9E498

Accessibility & contrast

On white

1.83

#B5CA37 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.47

#B5CA37 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B5CA37

11.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B5CA37	#FFFFFF	#000000	##000000
##B5CA37	1.00	1.83	11.47	11.47
#FFFFFF	1.83	1.00	21.00	21.00
#000000	11.47	21.00	1.00	1.00
##000000	11.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D8BF19

Deuteranopia (green-blind)

#D6C043

Tritanopia (blue-blind)

#C0BFAE

Achromatopsia (no color)

#BFBFBF

Design tokens & code

CSS

--color: #b5ca37;
/* rgb */ color: rgb(181, 202, 55);
/* oklch */ color: oklch(79.7% 0.166 117.5);

Tailwind

colors: {
  custom: {
    50: '#cfda78',
    500: '#b5ca37',
    950: '#000000',
  },
}

SCSS

$custom: #b5ca37;
$custom-light: #cfda78;
$custom-dark: #000000;

JSON

{
  "hex": "#b5ca37",
  "rgb": {
    "r": 181,
    "g": 202,
    "b": 55
  },
  "hsl": {
    "h": 68.571,
    "s": 58.103,
    "l": 50.392
  },
  "oklch": {
    "l": 0.79715,
    "c": 0.16603,
    "h": 117.5
  },
  "luminance": 0.52341
}

Semantic roles & 50–950 ramp

primary

#B5CA37

secondary

#3B3174

accent

#46E15D

background

#FEFEFB

surface

#FBFBF1

border

#D4D4CB

text

#14140A

muted

#83837D

Preview Lab

Preview with #B5CA37

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

Preview Lab → · Contrast checker → · Palette generator →