#51A920#51A920

#51A920 is a light, vivid yellow-green. Relative luminance 0.302; OKLCH L 65.5% C 0.186 H 137.3°. Best body text is #000000 at 7.05:1 contrast (WCAG AA passes).

Color values

HEX	#51A920
RGB	rgb(81, 169, 32)
HSL	hsl(99, 68%, 39%)
HSV	hsv(99, 81%, 66%)
CMYK	cmyk(52.1%, 0%, 81.1%, 33.7%)
CIE-LAB	lab(61.85, -49.28, 57.03)
CIE-LCH	lch(61.85, 75.37, 130.83°)
OKLab	oklab(65.48% -0.1368 0.1261)
OKLCH	oklch(65.48% 0.186 137.3)
XYZ	xyz(17.8414, 30.2282, 6.2607)
Luminance	0.3023 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A920 #7820A9

analogous

#96A920 #51A920 #20A934

triadic

#51A920 #2051A9 #A92051

tetradic

#51A920 #2096A9 #7820A9 #A93420

square

#51A920 #2096A9 #7820A9 #A93420

split-complementary

#51A920 #3420A9 #A92096

monochromatic

#20420D #387616 #51A920 #6BD82F #90E162

Accessibility & contrast

On white

2.98

#51A920 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.05

#51A920 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51A920

7.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A920	#FFFFFF	#000000	##000000
##51A920	1.00	2.98	7.05	7.05
#FFFFFF	2.98	1.00	21.00	21.00
#000000	7.05	21.00	1.00	1.00
##000000	7.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AF9A00

Deuteranopia (green-blind)

#A39330

Tritanopia (blue-blind)

#4BA390

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #51a920;
/* rgb */ color: rgb(81, 169, 32);
/* oklch */ color: oklch(65.5% 0.186 137.3);

Tailwind

colors: {
  custom: {
    50: '#8bc368',
    500: '#51a920',
    950: '#000000',
  },
}

SCSS

$custom: #51a920;
$custom-light: #8bc368;
$custom-dark: #000000;

JSON

{
  "hex": "#51a920",
  "rgb": {
    "r": 81,
    "g": 169,
    "b": 32
  },
  "hsl": {
    "h": 98.54,
    "s": 68.159,
    "l": 39.412
  },
  "oklch": {
    "l": 0.65481,
    "c": 0.18606,
    "h": 137.3
  },
  "luminance": 0.3023
}

Semantic roles & 50–950 ramp

primary

#51A920

secondary

#A15FC6

accent

#3DEBAD

background

#F9FCF6

surface

#F1F8EB

border

#CBD1C6

text

#0D1307

muted

#7E827A

Preview Lab

Preview with #51A920

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

Preview Lab → · Contrast checker → · Palette generator →