#B5E451#B5E451

#B5E451 is a very light, vivid yellow-green. Relative luminance 0.659; OKLCH L 85.8% C 0.180 H 125.2°. Best body text is #000000 at 14.18:1 contrast (WCAG AA passes).

Color values

HEX	#B5E451
RGB	rgb(181, 228, 81)
HSL	hsl(79, 73%, 61%)
HSV	hsv(79, 64%, 89%)
CMYK	cmyk(20.6%, 0%, 64.5%, 10.6%)
CIE-LAB	lab(84.95, -36.16, 64.36)
CIE-LCH	lch(84.95, 73.83, 119.33°)
OKLab	oklab(85.79% -0.1036 0.1467)
OKLCH	oklch(85.79% 0.18 125.2)
XYZ	xyz(48.2849, 65.9041, 17.9599)
Luminance	0.6591 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B5E451 #8051E4

analogous

#E4CA51 #B5E451 #6BE451

triadic

#B5E451 #51B5E4 #E451B5

tetradic

#B5E451 #51E4CA #8051E4 #E4516B

square

#B5E451 #51E4CA #8051E4 #E4516B

split-complementary

#B5E451 #516BE4 #CA51E4

monochromatic

#76A219 #9DD721 #B5E451 #CCEC86 #E2F4BB

Accessibility & contrast

On white

1.48

#B5E451 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.18

#B5E451 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B5E451

14.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B5E451	#FFFFFF	#000000	##000000
##B5E451	1.00	1.48	14.18	14.18
#FFFFFF	1.48	1.00	21.00	21.00
#000000	14.18	21.00	1.00	1.00
##000000	14.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F0D63E

Deuteranopia (green-blind)

#E9D45C

Tritanopia (blue-blind)

#BDDAC6

Achromatopsia (no color)

#D4D4D4

Design tokens & code

CSS

--color: #b5e451;
/* rgb */ color: rgb(181, 228, 81);
/* oklch */ color: oklch(85.8% 0.180 125.2);

Tailwind

colors: {
  custom: {
    50: '#ceec89',
    500: '#b5e451',
    950: '#000000',
  },
}

SCSS

$custom: #b5e451;
$custom-light: #ceec89;
$custom-dark: #000000;

JSON

{
  "hex": "#b5e451",
  "rgb": {
    "r": 181,
    "g": 228,
    "b": 81
  },
  "hsl": {
    "h": 79.184,
    "s": 73.134,
    "l": 60.588
  },
  "oklch": {
    "l": 0.85789,
    "c": 0.17965,
    "h": 125.2
  },
  "luminance": 0.65905
}

Semantic roles & 50–950 ramp

primary

#B5E451

secondary

#5935A4

accent

#10D54F

background

#FEFEFC

surface

#FBFDF4

border

#D4D5CE

text

#14160C

muted

#83847F

Preview Lab

Preview with #B5E451

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

Preview Lab → · Contrast checker → · Palette generator →