#B4E451#B4E451

#B4E451 is a very light, vivid yellow-green. Relative luminance 0.658; OKLCH L 85.7% C 0.180 H 125.5°. Best body text is #000000 at 14.16:1 contrast (WCAG AA passes).

Color values

HEX	#B4E451
RGB	rgb(180, 228, 81)
HSL	hsl(80, 73%, 61%)
HSV	hsv(80, 64%, 89%)
CMYK	cmyk(21.1%, 0%, 64.5%, 10.6%)
CIE-LAB	lab(84.89, -36.54, 64.28)
CIE-LCH	lch(84.89, 73.94, 119.62°)
OKLab	oklab(85.72% -0.1046 0.1466)
OKLCH	oklch(85.72% 0.18 125.5)
XYZ	xyz(48.0512, 65.7836, 17.9490)
Luminance	0.6578 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4E451 #8151E4

analogous

#E4CA51 #B4E451 #6AE451

triadic

#B4E451 #51B4E4 #E451B4

tetradic

#B4E451 #51E4CA #8151E4 #E4516A

square

#B4E451 #51E4CA #8151E4 #E4516A

split-complementary

#B4E451 #516AE4 #CA51E4

monochromatic

#75A219 #9BD721 #B4E451 #CBEC86 #E2F4BB

Accessibility & contrast

On white

1.48

#B4E451 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.16

#B4E451 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B4E451

14.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4E451	#FFFFFF	#000000	##000000
##B4E451	1.00	1.48	14.16	14.16
#FFFFFF	1.48	1.00	21.00	21.00
#000000	14.16	21.00	1.00	1.00
##000000	14.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F0D63E

Deuteranopia (green-blind)

#E9D35C

Tritanopia (blue-blind)

#BBDAC6

Achromatopsia (no color)

#D4D4D4

Design tokens & code

CSS

--color: #b4e451;
/* rgb */ color: rgb(180, 228, 81);
/* oklch */ color: oklch(85.7% 0.180 125.5);

Tailwind

colors: {
  custom: {
    50: '#ceec89',
    500: '#b4e451',
    950: '#000000',
  },
}

SCSS

$custom: #b4e451;
$custom-light: #ceec89;
$custom-dark: #000000;

JSON

{
  "hex": "#b4e451",
  "rgb": {
    "r": 180,
    "g": 228,
    "b": 81
  },
  "hsl": {
    "h": 79.592,
    "s": 73.134,
    "l": 60.588
  },
  "oklch": {
    "l": 0.85723,
    "c": 0.18009,
    "h": 125.5
  },
  "luminance": 0.65784
}

Semantic roles & 50–950 ramp

primary

#B4E451

secondary

#5935A4

accent

#10D551

background

#FEFEFC

surface

#FBFDF4

border

#D4D5CE

text

#14160C

muted

#83847F

Preview Lab

Preview with #B4E451

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

Preview Lab → · Contrast checker → · Palette generator →