#51A320#51A320

#51A320 is a light, vivid yellow-green. Relative luminance 0.280; OKLCH L 63.9% C 0.179 H 136.9°. Best body text is #000000 at 6.61:1 contrast (WCAG AA passes).

Color values

HEX	#51A320
RGB	rgb(81, 163, 32)
HSL	hsl(98, 67%, 38%)
HSV	hsv(98, 80%, 64%)
CMYK	cmyk(50.3%, 0%, 80.4%, 36.1%)
CIE-LAB	lab(59.93, -46.96, 55.25)
CIE-LCH	lch(59.93, 72.51, 130.37°)
OKLab	oklab(63.9% -0.1306 0.1224)
OKLCH	oklch(63.9% 0.179 136.9)
XYZ	xyz(16.7507, 28.0468, 5.8971)
Luminance	0.2805 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A320 #7220A3

analogous

#92A320 #51A320 #20A330

triadic

#51A320 #2051A3 #A32051

tetradic

#51A320 #2092A3 #7220A3 #A33020

square

#51A320 #2092A3 #7220A3 #A33020

split-complementary

#51A320 #3020A3 #A32092

monochromatic

#1E3D0C #387016 #51A320 #6BD52B #8EDF5E

Accessibility & contrast

On white

3.18

#51A320 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.61

#51A320 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51A320

6.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A320	#FFFFFF	#000000	##000000
##51A320	1.00	3.18	6.61	6.61
#FFFFFF	3.18	1.00	21.00	21.00
#000000	6.61	21.00	1.00	1.00
##000000	6.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A99500

Deuteranopia (green-blind)

#9E8E2F

Tritanopia (blue-blind)

#4C9D8B

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #51a320;
/* rgb */ color: rgb(81, 163, 32);
/* oklch */ color: oklch(63.9% 0.179 136.9);

Tailwind

colors: {
  custom: {
    50: '#8abf67',
    500: '#51a320',
    950: '#000000',
  },
}

SCSS

$custom: #51a320;
$custom-light: #8abf67;
$custom-dark: #000000;

JSON

{
  "hex": "#51a320",
  "rgb": {
    "r": 81,
    "g": 163,
    "b": 32
  },
  "hsl": {
    "h": 97.557,
    "s": 67.179,
    "l": 38.235
  },
  "oklch": {
    "l": 0.639,
    "c": 0.17896,
    "h": 136.9
  },
  "luminance": 0.28048
}

Semantic roles & 50–950 ramp

primary

#51A320

secondary

#9D5BC4

accent

#3EEAAA

background

#F8FBF6

surface

#F0F7EB

border

#CBD0C6

text

#0D1207

muted

#7D817A

Preview Lab

Preview with #51A320

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

Preview Lab → · Contrast checker → · Palette generator →