#51A720#51A720

#51A720 is a light, vivid yellow-green. Relative luminance 0.295; OKLCH L 65.0% C 0.184 H 137.2°. Best body text is #000000 at 6.90:1 contrast (WCAG AA passes).

Color values

HEX	#51A720
RGB	rgb(81, 167, 32)
HSL	hsl(98, 68%, 39%)
HSV	hsv(98, 81%, 65%)
CMYK	cmyk(51.5%, 0%, 80.8%, 34.5%)
CIE-LAB	lab(61.21, -48.51, 56.44)
CIE-LCH	lch(61.21, 74.42, 130.68°)
OKLab	oklab(64.95% -0.1347 0.1249)
OKLCH	oklch(64.95% 0.184 137.2)
XYZ	xyz(17.4722, 29.4898, 6.1376)
Luminance	0.2949 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A720 #7620A7

analogous

#95A720 #51A720 #20A733

triadic

#51A720 #2051A7 #A72051

tetradic

#51A720 #2095A7 #7620A7 #A73320

square

#51A720 #2095A7 #7620A7 #A73320

split-complementary

#51A720 #3320A7 #A72095

monochromatic

#1F400C #387416 #51A720 #6BD72D #8FE161

Accessibility & contrast

On white

3.04

#51A720 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.90

#51A720 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51A720

6.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A720	#FFFFFF	#000000	##000000
##51A720	1.00	3.04	6.90	6.90
#FFFFFF	3.04	1.00	21.00	21.00
#000000	6.90	21.00	1.00	1.00
##000000	6.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AD9800

Deuteranopia (green-blind)

#A29130

Tritanopia (blue-blind)

#4BA18E

Achromatopsia (no color)

#949494

Design tokens & code

CSS

--color: #51a720;
/* rgb */ color: rgb(81, 167, 32);
/* oklch */ color: oklch(65.0% 0.184 137.2);

Tailwind

colors: {
  custom: {
    50: '#8bc268',
    500: '#51a720',
    950: '#000000',
  },
}

SCSS

$custom: #51a720;
$custom-light: #8bc268;
$custom-dark: #000000;

JSON

{
  "hex": "#51a720",
  "rgb": {
    "r": 81,
    "g": 167,
    "b": 32
  },
  "hsl": {
    "h": 98.222,
    "s": 67.839,
    "l": 39.02
  },
  "oklch": {
    "l": 0.64954,
    "c": 0.18371,
    "h": 137.2
  },
  "luminance": 0.29491
}

Semantic roles & 50–950 ramp

primary

#51A720

secondary

#A05DC5

accent

#3DEBAC

background

#F9FCF6

surface

#F1F8EB

border

#CBD1C6

text

#0D1207

muted

#7E817A

Preview Lab

Preview with #51A720

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

Preview Lab → · Contrast checker → · Palette generator →