#81D555#81D555

#81D555 is a light, vivid yellow-green. Relative luminance 0.529; OKLCH L 79.3% C 0.183 H 136.3°. Best body text is #000000 at 11.58:1 contrast (WCAG AA passes).

Color values

HEX	#81D555
RGB	rgb(129, 213, 85)
HSL	hsl(99, 60%, 58%)
HSV	hsv(99, 60%, 84%)
CMYK	cmyk(39.4%, 0%, 60.1%, 16.5%)
CIE-LAB	lab(77.82, -47.78, 54.09)
CIE-LCH	lch(77.82, 72.18, 131.46°)
OKLab	oklab(79.26% -0.1322 0.1261)
OKLCH	oklch(79.26% 0.183 136.3)
XYZ	xyz(34.4863, 52.9097, 16.9880)
Luminance	0.5291 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81D555 #A955D5

analogous

#C1D555 #81D555 #55D569

triadic

#81D555 #5581D5 #D55581

tetradic

#81D555 #55C1D5 #A955D5 #D56955

square

#81D555 #55C1D5 #A955D5 #D56955

split-complementary

#81D555 #6955D5 #D555C1

monochromatic

#478D23 #60BE2F #81D555 #A5E186 #CAEDB7

Accessibility & contrast

On white

1.81

#81D555 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.58

#81D555 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81D555

11.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81D555	#FFFFFF	#000000	##000000
##81D555	1.00	1.81	11.58	11.58
#FFFFFF	1.81	1.00	21.00	21.00
#000000	11.58	21.00	1.00	1.00
##000000	11.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DCC547

Deuteranopia (green-blind)

#D0BE5F

Tritanopia (blue-blind)

#7ECEBA

Achromatopsia (no color)

#C0C0C0

Design tokens & code

CSS

--color: #81d555;
/* rgb */ color: rgb(129, 213, 85);
/* oklch */ color: oklch(79.3% 0.183 136.3);

Tailwind

colors: {
  custom: {
    50: '#abe289',
    500: '#81d555',
    950: '#000000',
  },
}

SCSS

$custom: #81d555;
$custom-light: #abe289;
$custom-dark: #000000;

JSON

{
  "hex": "#81d555",
  "rgb": {
    "r": 129,
    "g": 213,
    "b": 85
  },
  "hsl": {
    "h": 99.375,
    "s": 60.377,
    "l": 58.431
  },
  "oklch": {
    "l": 0.79264,
    "c": 0.18273,
    "h": 136.3
  },
  "luminance": 0.52912
}

Semantic roles & 50–950 ramp

primary

#81D555

secondary

#753C93

accent

#44E4AD

background

#FDFEFC

surface

#F7FCF4

border

#D0D5CE

text

#10150C

muted

#81847F

Preview Lab

Preview with #81D555

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

Preview Lab → · Contrast checker → · Palette generator →