#51A425#51A425

#51A425 is a light, vivid yellow-green. Relative luminance 0.284; OKLCH L 64.2% C 0.178 H 137.3°. Best body text is #000000 at 6.69:1 contrast (WCAG AA passes).

Color values

HEX	#51A425
RGB	rgb(81, 164, 37)
HSL	hsl(99, 63%, 39%)
HSV	hsv(99, 77%, 64%)
CMYK	cmyk(50.6%, 0%, 77.4%, 35.7%)
CIE-LAB	lab(60.28, -47.06, 53.99)
CIE-LCH	lch(60.28, 71.62, 131.08°)
OKLab	oklab(64.19% -0.1305 0.1205)
OKLCH	oklch(64.19% 0.178 137.3)
XYZ	xyz(17.0022, 28.4326, 6.3420)
Luminance	0.2843 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A425 #7825A4

analogous

#90A425 #51A425 #25A439

triadic

#51A425 #2551A4 #A42551

tetradic

#51A425 #2590A4 #7825A4 #A43925

square

#51A425 #2590A4 #7825A4 #A43925

split-complementary

#51A425 #3925A4 #A42590

monochromatic

#20400E #38721A #51A425 #6BD135 #90DD67

Accessibility & contrast

On white

3.14

#51A425 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.69

#51A425 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51A425

6.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A425	#FFFFFF	#000000	##000000
##51A425	1.00	3.14	6.69	6.69
#FFFFFF	3.14	1.00	21.00	21.00
#000000	6.69	21.00	1.00	1.00
##000000	6.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AA9604

Deuteranopia (green-blind)

#9F8F33

Tritanopia (blue-blind)

#4C9E8C

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #51a425;
/* rgb */ color: rgb(81, 164, 37);
/* oklch */ color: oklch(64.2% 0.178 137.3);

Tailwind

colors: {
  custom: {
    50: '#8ac06a',
    500: '#51a425',
    950: '#000000',
  },
}

SCSS

$custom: #51a425;
$custom-light: #8ac06a;
$custom-dark: #000000;

JSON

{
  "hex": "#51a425",
  "rgb": {
    "r": 81,
    "g": 164,
    "b": 37
  },
  "hsl": {
    "h": 99.213,
    "s": 63.184,
    "l": 39.412
  },
  "oklch": {
    "l": 0.64194,
    "c": 0.17765,
    "h": 137.3
  },
  "luminance": 0.28434
}

Semantic roles & 50–950 ramp

primary

#51A425

secondary

#A162C2

accent

#42E6AD

background

#F8FBF6

surface

#F0F7EB

border

#CBD0C6

text

#0D1207

muted

#7D817A

Preview Lab

Preview with #51A425

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

Preview Lab → · Contrast checker → · Palette generator →