#51A625#51A625

#51A625 is a light, vivid yellow-green. Relative luminance 0.292; OKLCH L 64.7% C 0.180 H 137.4°. Best body text is #000000 at 6.83:1 contrast (WCAG AA passes).

Color values

HEX	#51A625
RGB	rgb(81, 166, 37)
HSL	hsl(100, 64%, 40%)
HSV	hsv(100, 78%, 65%)
CMYK	cmyk(51.2%, 0%, 77.7%, 34.9%)
CIE-LAB	lab(60.92, -47.84, 54.60)
CIE-LCH	lch(60.92, 72.59, 131.22°)
OKLab	oklab(64.72% -0.1326 0.1218)
OKLCH	oklch(64.72% 0.18 137.4)
XYZ	xyz(17.3629, 29.1541, 6.4623)
Luminance	0.2915 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A625 #7A25A6

analogous

#92A625 #51A625 #25A63A

triadic

#51A625 #2551A6 #A62551

tetradic

#51A625 #2592A6 #7A25A6 #A63A25

square

#51A625 #2592A6 #7A25A6 #A63A25

split-complementary

#51A625 #3A25A6 #A62592

monochromatic

#20420F #39741A #51A625 #6BD236 #90DD68

Accessibility & contrast

On white

3.07

#51A625 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.83

#51A625 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51A625

6.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A625	#FFFFFF	#000000	##000000
##51A625	1.00	3.07	6.83	6.83
#FFFFFF	3.07	1.00	21.00	21.00
#000000	6.83	21.00	1.00	1.00
##000000	6.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AC9703

Deuteranopia (green-blind)

#A19033

Tritanopia (blue-blind)

#4BA08E

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #51a625;
/* rgb */ color: rgb(81, 166, 37);
/* oklch */ color: oklch(64.7% 0.180 137.4);

Tailwind

colors: {
  custom: {
    50: '#8ac16a',
    500: '#51a625',
    950: '#000000',
  },
}

SCSS

$custom: #51a625;
$custom-light: #8ac16a;
$custom-dark: #000000;

JSON

{
  "hex": "#51a625",
  "rgb": {
    "r": 81,
    "g": 166,
    "b": 37
  },
  "hsl": {
    "h": 99.535,
    "s": 63.547,
    "l": 39.804
  },
  "oklch": {
    "l": 0.6472,
    "c": 0.18006,
    "h": 137.4
  },
  "luminance": 0.29155
}

Semantic roles & 50–950 ramp

primary

#51A625

secondary

#A364C3

accent

#41E7AE

background

#F8FBF6

surface

#F0F7EB

border

#CBD0C6

text

#0D1207

muted

#7D817A

Preview Lab

Preview with #51A625

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

Preview Lab → · Contrast checker → · Palette generator →