#51A020#51A020

#51A020 is a light, vivid yellow-green. Relative luminance 0.270; OKLCH L 63.1% C 0.175 H 136.6°. Best body text is #000000 at 6.40:1 contrast (WCAG AA passes).

Color values

HEX	#51A020
RGB	rgb(81, 160, 32)
HSL	hsl(97, 67%, 38%)
HSV	hsv(97, 80%, 63%)
CMYK	cmyk(49.4%, 0%, 80%, 37.3%)
CIE-LAB	lab(58.97, -45.78, 54.34)
CIE-LCH	lch(58.97, 71.06, 130.11°)
OKLab	oklab(63.11% -0.1274 0.1205)
OKLCH	oklch(63.11% 0.175 136.6)
XYZ	xyz(16.2244, 26.9941, 5.7217)
Luminance	0.2700 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A020 #6F20A0

analogous

#91A020 #51A020 #20A02F

triadic

#51A020 #2051A0 #A02051

tetradic

#51A020 #2091A0 #6F20A0 #A02F20

square

#51A020 #2091A0 #6F20A0 #A02F20

split-complementary

#51A020 #2F20A0 #A02091

monochromatic

#1D3A0C #376D16 #51A020 #6BD32A #8EDE5C

Accessibility & contrast

On white

3.28

#51A020 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.40

#51A020 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51A020

6.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A020	#FFFFFF	#000000	##000000
##51A020	1.00	3.28	6.40	6.40
#FFFFFF	3.28	1.00	21.00	21.00
#000000	6.40	21.00	1.00	1.00
##000000	6.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A69200

Deuteranopia (green-blind)

#9B8B2F

Tritanopia (blue-blind)

#4D9A88

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #51a020;
/* rgb */ color: rgb(81, 160, 32);
/* oklch */ color: oklch(63.1% 0.175 136.6);

Tailwind

colors: {
  custom: {
    50: '#8abd67',
    500: '#51a020',
    950: '#000000',
  },
}

SCSS

$custom: #51a020;
$custom-light: #8abd67;
$custom-dark: #000000;

JSON

{
  "hex": "#51a020",
  "rgb": {
    "r": 81,
    "g": 160,
    "b": 32
  },
  "hsl": {
    "h": 97.031,
    "s": 66.667,
    "l": 37.647
  },
  "oklch": {
    "l": 0.63108,
    "c": 0.17536,
    "h": 136.6
  },
  "luminance": 0.26995
}

Semantic roles & 50–950 ramp

primary

#51A020

secondary

#9A59C3

accent

#3EEAA8

background

#F8FBF6

surface

#F0F6EB

border

#CBD0C6

text

#0C1206

muted

#7D817A

Preview Lab

Preview with #51A020

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

Preview Lab → · Contrast checker → · Palette generator →