#81C545#81C545

#81C545 is a light, vivid yellow-green. Relative luminance 0.450; OKLCH L 75.2% C 0.174 H 133.0°. Best body text is #000000 at 10.01:1 contrast (WCAG AA passes).

Color values

HEX	#81C545
RGB	rgb(129, 197, 69)
HSL	hsl(92, 52%, 52%)
HSV	hsv(92, 65%, 77%)
CMYK	cmyk(34.5%, 0%, 65%, 22.7%)
CIE-LAB	lab(72.91, -42.45, 55.49)
CIE-LCH	lch(72.91, 69.86, 127.42°)
OKLab	oklab(75.21% -0.1188 0.1273)
OKLCH	oklch(75.21% 0.174 133)
XYZ	xyz(30.0932, 45.0281, 12.7348)
Luminance	0.4503 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81C545 #8945C5

analogous

#C1C545 #81C545 #45C549

triadic

#81C545 #4581C5 #C54581

tetradic

#81C545 #45C1C5 #8945C5 #C54945

square

#81C545 #45C1C5 #8945C5 #C54945

split-complementary

#81C545 #4945C5 #C545C1

monochromatic

#456D22 #639C31 #81C545 #A1D474 #C0E2A2

Accessibility & contrast

On white

2.10

#81C545 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.01

#81C545 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81C545

10.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81C545	#FFFFFF	#000000	##000000
##81C545	1.00	2.10	10.01	10.01
#FFFFFF	2.10	1.00	21.00	21.00
#000000	10.01	21.00	1.00	1.00
##000000	10.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CDB634

Deuteranopia (green-blind)

#C3B14F

Tritanopia (blue-blind)

#82BDAB

Achromatopsia (no color)

#B3B3B3

Design tokens & code

CSS

--color: #81c545;
/* rgb */ color: rgb(129, 197, 69);
/* oklch */ color: oklch(75.2% 0.174 133.0);

Tailwind

colors: {
  custom: {
    50: '#aad77f',
    500: '#81c545',
    950: '#000000',
  },
}

SCSS

$custom: #81c545;
$custom-light: #aad77f;
$custom-dark: #000000;

JSON

{
  "hex": "#81c545",
  "rgb": {
    "r": 129,
    "g": 197,
    "b": 69
  },
  "hsl": {
    "h": 91.875,
    "s": 52.459,
    "l": 52.157
  },
  "oklch": {
    "l": 0.75211,
    "c": 0.17415,
    "h": 133
  },
  "luminance": 0.45029
}

Semantic roles & 50–950 ramp

primary

#81C545

secondary

#B597CF

accent

#4CDC98

background

#FAFDF8

surface

#F4FAEF

border

#CED3CA

text

#10140A

muted

#7F837C

Preview Lab

Preview with #81C545

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

Preview Lab → · Contrast checker → · Palette generator →