#51A71C#51A71C

#51A71C is a light, vivid yellow-green. Relative luminance 0.295; OKLCH L 64.9% C 0.185 H 136.9°. Best body text is #000000 at 6.89:1 contrast (WCAG AA passes).

Color values

HEX	#51A71C
RGB	rgb(81, 167, 28)
HSL	hsl(97, 71%, 38%)
HSV	hsv(97, 83%, 65%)
CMYK	cmyk(51.5%, 0%, 83.2%, 34.5%)
CIE-LAB	lab(61.19, -48.71, 57.55)
CIE-LCH	lch(61.19, 75.39, 130.25°)
OKLab	oklab(64.93% -0.1355 0.1266)
OKLCH	oklch(64.93% 0.185 136.9)
XYZ	xyz(17.4211, 29.4693, 5.8685)
Luminance	0.2947 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A71C #721CA7

analogous

#96A71C #51A71C #1CA72C

triadic

#51A71C #1C51A7 #A71C51

tetradic

#51A71C #1C96A7 #721CA7 #A72C1C

square

#51A71C #1C96A7 #721CA7 #A72C1C

split-complementary

#51A71C #2C1CA7 #A71C96

monochromatic

#1E3E0A #387313 #51A71C #6BDB26 #8EE35A

Accessibility & contrast

On white

3.05

#51A71C on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.89

#51A71C on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51A71C

6.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A71C	#FFFFFF	#000000	##000000
##51A71C	1.00	3.05	6.89	6.89
#FFFFFF	3.05	1.00	21.00	21.00
#000000	6.89	21.00	1.00	1.00
##000000	6.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AD9800

Deuteranopia (green-blind)

#A2912E

Tritanopia (blue-blind)

#4CA18E

Achromatopsia (no color)

#949494

Design tokens & code

CSS

--color: #51a71c;
/* rgb */ color: rgb(81, 167, 28);
/* oklch */ color: oklch(64.9% 0.185 136.9);

Tailwind

colors: {
  custom: {
    50: '#8bc266',
    500: '#51a71c',
    950: '#000000',
  },
}

SCSS

$custom: #51a71c;
$custom-light: #8bc266;
$custom-dark: #000000;

JSON

{
  "hex": "#51a71c",
  "rgb": {
    "r": 81,
    "g": 167,
    "b": 28
  },
  "hsl": {
    "h": 97.122,
    "s": 71.282,
    "l": 38.235
  },
  "oklch": {
    "l": 0.64934,
    "c": 0.18545,
    "h": 136.9
  },
  "luminance": 0.29471
}

Semantic roles & 50–950 ramp

primary

#51A71C

secondary

#9D58C7

accent

#3AEEA9

background

#F9FCF6

surface

#F1F8EB

border

#CBD1C6

text

#0D1206

muted

#7E817A

Preview Lab

Preview with #51A71C

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

Preview Lab → · Contrast checker → · Palette generator →