#51A120#51A120

#51A120 is a light, vivid yellow-green. Relative luminance 0.273; OKLCH L 63.4% C 0.177 H 136.7°. Best body text is #000000 at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#51A120
RGB	rgb(81, 161, 32)
HSL	hsl(97, 67%, 38%)
HSV	hsv(97, 80%, 63%)
CMYK	cmyk(49.7%, 0%, 80.1%, 36.9%)
CIE-LAB	lab(59.29, -46.17, 54.65)
CIE-LCH	lch(59.29, 71.54, 130.20°)
OKLab	oklab(63.37% -0.1285 0.1211)
OKLCH	oklch(63.37% 0.177 136.7)
XYZ	xyz(16.3984, 27.3422, 5.7797)
Luminance	0.2734 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A120 #7020A1

analogous

#91A120 #51A120 #20A12F

triadic

#51A120 #2051A1 #A12051

tetradic

#51A120 #2091A1 #7020A1 #A12F20

square

#51A120 #2091A1 #7020A1 #A12F20

split-complementary

#51A120 #2F20A1 #A12091

monochromatic

#1E3B0C #376E16 #51A120 #6BD42A #8EDF5D

Accessibility & contrast

On white

3.25

#51A120 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.47

#51A120 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51A120

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A120	#FFFFFF	#000000	##000000
##51A120	1.00	3.25	6.47	6.47
#FFFFFF	3.25	1.00	21.00	21.00
#000000	6.47	21.00	1.00	1.00
##000000	6.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A79300

Deuteranopia (green-blind)

#9C8C2F

Tritanopia (blue-blind)

#4D9B89

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #51a120;
/* rgb */ color: rgb(81, 161, 32);
/* oklch */ color: oklch(63.4% 0.177 136.7);

Tailwind

colors: {
  custom: {
    50: '#8abd67',
    500: '#51a120',
    950: '#000000',
  },
}

SCSS

$custom: #51a120;
$custom-light: #8abd67;
$custom-dark: #000000;

JSON

{
  "hex": "#51a120",
  "rgb": {
    "r": 81,
    "g": 161,
    "b": 32
  },
  "hsl": {
    "h": 97.209,
    "s": 66.839,
    "l": 37.843
  },
  "oklch": {
    "l": 0.63372,
    "c": 0.17656,
    "h": 136.7
  },
  "luminance": 0.27343
}

Semantic roles & 50–950 ramp

primary

#51A120

secondary

#9B5AC3

accent

#3EEAA9

background

#F8FBF6

surface

#F0F7EB

border

#CBD0C6

text

#0D1206

muted

#7D817A

Preview Lab

Preview with #51A120

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

Preview Lab → · Contrast checker → · Palette generator →