#51A125#51A125

#51A125 is a light, vivid yellow-green. Relative luminance 0.274; OKLCH L 63.4% C 0.174 H 137.0°. Best body text is #000000 at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#51A125
RGB	rgb(81, 161, 37)
HSL	hsl(99, 63%, 39%)
HSV	hsv(99, 77%, 63%)
CMYK	cmyk(49.7%, 0%, 77%, 36.9%)
CIE-LAB	lab(59.32, -45.88, 53.06)
CIE-LCH	lch(59.32, 70.14, 130.85°)
OKLab	oklab(63.4% -0.1273 0.1186)
OKLCH	oklch(63.4% 0.174 137)
XYZ	xyz(16.4716, 27.3715, 6.1652)
Luminance	0.2737 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A125 #7525A1

analogous

#8FA125 #51A125 #25A137

triadic

#51A125 #2551A1 #A12551

tetradic

#51A125 #258FA1 #7525A1 #A13725

square

#51A125 #258FA1 #7525A1 #A13725

split-complementary

#51A125 #3725A1 #A1258F

monochromatic

#1F3D0E #386F1A #51A125 #6BD033 #8FDC65

Accessibility & contrast

On white

3.24

#51A125 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.47

#51A125 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51A125

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A125	#FFFFFF	#000000	##000000
##51A125	1.00	3.24	6.47	6.47
#FFFFFF	3.24	1.00	21.00	21.00
#000000	6.47	21.00	1.00	1.00
##000000	6.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A79307

Deuteranopia (green-blind)

#9C8C32

Tritanopia (blue-blind)

#4C9B8A

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #51a125;
/* rgb */ color: rgb(81, 161, 37);
/* oklch */ color: oklch(63.4% 0.174 137.0);

Tailwind

colors: {
  custom: {
    50: '#8abd69',
    500: '#51a125',
    950: '#000000',
  },
}

SCSS

$custom: #51a125;
$custom-light: #8abd69;
$custom-dark: #000000;

JSON

{
  "hex": "#51a125",
  "rgb": {
    "r": 81,
    "g": 161,
    "b": 37
  },
  "hsl": {
    "h": 98.71,
    "s": 62.626,
    "l": 38.824
  },
  "oklch": {
    "l": 0.63403,
    "c": 0.17399,
    "h": 137
  },
  "luminance": 0.27373
}

Semantic roles & 50–950 ramp

primary

#51A125

secondary

#9F61C1

accent

#42E6AC

background

#F8FBF6

surface

#F0F7EB

border

#CBD0C6

text

#0C1207

muted

#7D817A

Preview Lab

Preview with #51A125

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

Preview Lab → · Contrast checker → · Palette generator →