#51A428#51A428

#51A428 is a light, vivid green. Relative luminance 0.285; OKLCH L 64.2% C 0.176 H 137.5°. Best body text is #000000 at 6.69:1 contrast (WCAG AA passes).

Color values

HEX	#51A428
RGB	rgb(81, 164, 40)
HSL	hsl(100, 61%, 40%)
HSV	hsv(100, 76%, 64%)
CMYK	cmyk(50.6%, 0%, 75.6%, 35.7%)
CIE-LAB	lab(60.30, -46.86, 52.98)
CIE-LCH	lch(60.30, 70.73, 131.50°)
OKLab	oklab(64.21% -0.1298 0.1188)
OKLCH	oklch(64.21% 0.176 137.5)
XYZ	xyz(17.0512, 28.4522, 6.6004)
Luminance	0.2845 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A428 #7B28A4

analogous

#8FA428 #51A428 #28A43D

triadic

#51A428 #2851A4 #A42851

tetradic

#51A428 #288FA4 #7B28A4 #A43D28

square

#51A428 #288FA4 #7B28A4 #A43D28

split-complementary

#51A428 #3D28A4 #A4288F

monochromatic

#204210 #39731C #51A428 #6BCF3A #90DB6B

Accessibility & contrast

On white

3.14

#51A428 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.69

#51A428 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51A428

6.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A428	#FFFFFF	#000000	##000000
##51A428	1.00	3.14	6.69	6.69
#FFFFFF	3.14	1.00	21.00	21.00
#000000	6.69	21.00	1.00	1.00
##000000	6.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A9960D

Deuteranopia (green-blind)

#9F8F35

Tritanopia (blue-blind)

#4B9E8C

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #51a428;
/* rgb */ color: rgb(81, 164, 40);
/* oklch */ color: oklch(64.2% 0.176 137.5);

Tailwind

colors: {
  custom: {
    50: '#8ac06b',
    500: '#51a428',
    950: '#000000',
  },
}

SCSS

$custom: #51a428;
$custom-light: #8ac06b;
$custom-dark: #000000;

JSON

{
  "hex": "#51a428",
  "rgb": {
    "r": 81,
    "g": 164,
    "b": 40
  },
  "hsl": {
    "h": 100.161,
    "s": 60.784,
    "l": 40
  },
  "oklch": {
    "l": 0.64214,
    "c": 0.17599,
    "h": 137.5
  },
  "luminance": 0.28453
}

Semantic roles & 50–950 ramp

primary

#51A428

secondary

#A366C1

accent

#44E4AF

background

#F8FBF6

surface

#F0F7EC

border

#CBD0C7

text

#0D1207

muted

#7D817A

Preview Lab

Preview with #51A428

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

Preview Lab → · Contrast checker → · Palette generator →