#51A522#51A522

#51A522 is a light, vivid yellow-green. Relative luminance 0.288; OKLCH L 64.4% C 0.180 H 137.1°. Best body text is #000000 at 6.76:1 contrast (WCAG AA passes).

Color values

HEX	#51A522
RGB	rgb(81, 165, 34)
HSL	hsl(98, 66%, 39%)
HSV	hsv(98, 79%, 65%)
CMYK	cmyk(50.9%, 0%, 79.4%, 35.3%)
CIE-LAB	lab(60.58, -47.63, 55.24)
CIE-LCH	lch(60.58, 72.94, 130.77°)
OKLab	oklab(64.44% -0.1322 0.1227)
OKLCH	oklch(64.44% 0.18 137.1)
XYZ	xyz(17.1367, 28.7739, 6.1640)
Luminance	0.2878 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A522 #7622A5

analogous

#93A522 #51A522 #22A535

triadic

#51A522 #2251A5 #A52251

tetradic

#51A522 #2293A5 #7622A5 #A53522

square

#51A522 #2293A5 #7622A5 #A53522

split-complementary

#51A522 #3522A5 #A52293

monochromatic

#1F400D #387218 #51A522 #6BD430 #8FDF63

Accessibility & contrast

On white

3.11

#51A522 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.76

#51A522 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51A522

6.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A522	#FFFFFF	#000000	##000000
##51A522	1.00	3.11	6.76	6.76
#FFFFFF	3.11	1.00	21.00	21.00
#000000	6.76	21.00	1.00	1.00
##000000	6.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AB9600

Deuteranopia (green-blind)

#A09031

Tritanopia (blue-blind)

#4C9F8D

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #51a522;
/* rgb */ color: rgb(81, 165, 34);
/* oklch */ color: oklch(64.4% 0.180 137.1);

Tailwind

colors: {
  custom: {
    50: '#8ac068',
    500: '#51a522',
    950: '#000000',
  },
}

SCSS

$custom: #51a522;
$custom-light: #8ac068;
$custom-dark: #000000;

JSON

{
  "hex": "#51a522",
  "rgb": {
    "r": 81,
    "g": 165,
    "b": 34
  },
  "hsl": {
    "h": 98.473,
    "s": 65.829,
    "l": 39.02
  },
  "oklch": {
    "l": 0.64439,
    "c": 0.18038,
    "h": 137.1
  },
  "luminance": 0.28775
}

Semantic roles & 50–950 ramp

primary

#51A522

secondary

#A05FC4

accent

#3FE9AC

background

#F8FBF6

surface

#F0F7EB

border

#CBD0C6

text

#0D1207

muted

#7D817A

Preview Lab

Preview with #51A522

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

Preview Lab → · Contrast checker → · Palette generator →