#B5DA37#B5DA37

#B5DA37 is a very light, vivid yellow-green. Relative luminance 0.602; OKLCH L 83.3% C 0.184 H 121.9°. Best body text is #000000 at 13.05:1 contrast (WCAG AA passes).

Color values

HEX	#B5DA37
RGB	rgb(181, 218, 55)
HSL	hsl(74, 69%, 54%)
HSV	hsv(74, 75%, 85%)
CMYK	cmyk(17%, 0%, 74.8%, 14.5%)
CIE-LAB	lab(81.97, -33.11, 70.73)
CIE-LCH	lch(81.97, 78.10, 115.09°)
OKLab	oklab(83.33% -0.0974 0.1563)
OKLCH	oklch(83.33% 0.184 121.9)
XYZ	xyz(44.8177, 60.2423, 12.8805)
Luminance	0.6024 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B5DA37 #5C37DA

analogous

#DAAE37 #B5DA37 #63DA37

triadic

#B5DA37 #37B5DA #DA37B5

tetradic

#B5DA37 #37DAAE #5C37DA #DA3763

square

#B5DA37 #37DAAE #5C37DA #DA3763

split-complementary

#B5DA37 #3763DA #AE37DA

monochromatic

#687F18 #92B321 #B5DA37 #C8E46B #DBED9E

Accessibility & contrast

On white

1.61

#B5DA37 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.05

#B5DA37 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B5DA37

13.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B5DA37	#FFFFFF	#000000	##000000
##B5DA37	1.00	1.61	13.05	13.05
#FFFFFF	1.61	1.00	21.00	21.00
#000000	13.05	21.00	1.00	1.00
##000000	13.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E7CD0F

Deuteranopia (green-blind)

#E3CC46

Tritanopia (blue-blind)

#BFCFBB

Achromatopsia (no color)

#CCCCCC

Design tokens & code

CSS

--color: #b5da37;
/* rgb */ color: rgb(181, 218, 55);
/* oklch */ color: oklch(83.3% 0.184 121.9);

Tailwind

colors: {
  custom: {
    50: '#cfe57a',
    500: '#b5da37',
    950: '#000000',
  },
}

SCSS

$custom: #b5da37;
$custom-light: #cfe57a;
$custom-dark: #000000;

JSON

{
  "hex": "#b5da37",
  "rgb": {
    "r": 181,
    "g": 218,
    "b": 55
  },
  "hsl": {
    "h": 73.62,
    "s": 68.776,
    "l": 53.529
  },
  "oklch": {
    "l": 0.83329,
    "c": 0.18417,
    "h": 121.9
  },
  "luminance": 0.60242
}

Semantic roles & 50–950 ramp

primary

#B5DA37

secondary

#432F86

accent

#3CEC64

background

#FEFEFB

surface

#FBFCF2

border

#D4D5CC

text

#14150A

muted

#83847D

Preview Lab

Preview with #B5DA37

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

Preview Lab → · Contrast checker → · Palette generator →