#B5E040#B5E040

#B5E040 is a very light, vivid yellow-green. Relative luminance 0.635; OKLCH L 84.7% C 0.186 H 123.6°. Best body text is #000000 at 13.70:1 contrast (WCAG AA passes).

Color values

HEX	#B5E040
RGB	rgb(181, 224, 64)
HSL	hsl(76, 72%, 56%)
HSV	hsv(76, 71%, 88%)
CMYK	cmyk(19.2%, 0%, 71.4%, 12.2%)
CIE-LAB	lab(83.71, -35.40, 69.42)
CIE-LCH	lch(83.71, 77.93, 117.02°)
OKLab	oklab(84.75% -0.103 0.1549)
OKLCH	oklch(84.75% 0.186 123.6)
XYZ	xyz(46.6376, 63.5049, 14.6502)
Luminance	0.6351 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B5E040 #6B40E0

analogous

#E0BB40 #B5E040 #65E040

triadic

#B5E040 #40B5E0 #E040B5

tetradic

#B5E040 #40E0BB #6B40E0 #E04065

square

#B5E040 #40E0BB #6B40E0 #E04065

split-complementary

#B5E040 #4065E0 #BB40E0

monochromatic

#6E8E17 #97C320 #B5E040 #C9E975 #DEF1A9

Accessibility & contrast

On white

1.53

#B5E040 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.70

#B5E040 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B5E040

13.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B5E040	#FFFFFF	#000000	##000000
##B5E040	1.00	1.53	13.70	13.70
#FFFFFF	1.53	1.00	21.00	21.00
#000000	13.70	21.00	1.00	1.00
##000000	13.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EDD222

Deuteranopia (green-blind)

#E7D04E

Tritanopia (blue-blind)

#BED5C1

Achromatopsia (no color)

#D1D1D1

Design tokens & code

CSS

--color: #b5e040;
/* rgb */ color: rgb(181, 224, 64);
/* oklch */ color: oklch(84.7% 0.186 123.6);

Tailwind

colors: {
  custom: {
    50: '#cfe97f',
    500: '#b5e040',
    950: '#000000',
  },
}

SCSS

$custom: #b5e040;
$custom-light: #cfe97f;
$custom-dark: #000000;

JSON

{
  "hex": "#b5e040",
  "rgb": {
    "r": 181,
    "g": 224,
    "b": 64
  },
  "hsl": {
    "h": 76.125,
    "s": 72.072,
    "l": 56.471
  },
  "oklch": {
    "l": 0.84749,
    "c": 0.18605,
    "h": 123.6
  },
  "luminance": 0.63505
}

Semantic roles & 50–950 ramp

primary

#B5E040

secondary

#4B3194

accent

#39EF6A

background

#FEFEFB

surface

#FBFDF2

border

#D4D5CC

text

#14160B

muted

#83847E

Preview Lab

Preview with #B5E040

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

Preview Lab → · Contrast checker → · Palette generator →