#51A431#51A431

#51A431 is a light, vivid green. Relative luminance 0.285; OKLCH L 64.3% C 0.170 H 138.4°. Best body text is #000000 at 6.70:1 contrast (WCAG AA passes).

Color values

HEX	#51A431
RGB	rgb(81, 164, 49)
HSL	hsl(103, 54%, 42%)
HSV	hsv(103, 70%, 64%)
CMYK	cmyk(50.6%, 0%, 70.1%, 35.7%)
CIE-LAB	lab(60.36, -46.18, 49.65)
CIE-LCH	lch(60.36, 67.81, 132.93°)
OKLab	oklab(64.28% -0.1274 0.1131)
OKLCH	oklch(64.28% 0.17 138.4)
XYZ	xyz(17.2226, 28.5207, 7.5027)
Luminance	0.2852 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A431 #8431A4

analogous

#8BA431 #51A431 #31A44A

triadic

#51A431 #3151A4 #A43151

tetradic

#51A431 #318BA4 #8431A4 #A44A31

square

#51A431 #318BA4 #8431A4 #A44A31

split-complementary

#51A431 #4A31A4 #A4318B

monochromatic

#224615 #3A7523 #51A431 #6DC949 #93D779

Accessibility & contrast

On white

3.13

#51A431 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.70

#51A431 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51A431

6.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A431	#FFFFFF	#000000	##000000
##51A431	1.00	3.13	6.70	6.70
#FFFFFF	3.13	1.00	21.00	21.00
#000000	6.70	21.00	1.00	1.00
##000000	6.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A99620

Deuteranopia (green-blind)

#9E8F3C

Tritanopia (blue-blind)

#4A9E8D

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #51a431;
/* rgb */ color: rgb(81, 164, 49);
/* oklch */ color: oklch(64.3% 0.170 138.4);

Tailwind

colors: {
  custom: {
    50: '#8ac070',
    500: '#51a431',
    950: '#000000',
  },
}

SCSS

$custom: #51a431;
$custom-light: #8ac070;
$custom-dark: #000000;

JSON

{
  "hex": "#51a431",
  "rgb": {
    "r": 81,
    "g": 164,
    "b": 49
  },
  "hsl": {
    "h": 103.304,
    "s": 53.991,
    "l": 41.765
  },
  "oklch": {
    "l": 0.64284,
    "c": 0.17038,
    "h": 138.4
  },
  "luminance": 0.28522
}

Semantic roles & 50–950 ramp

primary

#51A431

secondary

#AA72BF

accent

#4ADDB4

background

#F8FBF7

surface

#F0F7ED

border

#CBD0C8

text

#0C1208

muted

#7D817B

Preview Lab

Preview with #51A431

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

Preview Lab → · Contrast checker → · Palette generator →