#51A025#51A025

#51A025 is a light, vivid yellow-green. Relative luminance 0.270; OKLCH L 63.1% C 0.173 H 137.0°. Best body text is #000000 at 6.40:1 contrast (WCAG AA passes).

Color values

HEX	#51A025
RGB	rgb(81, 160, 37)
HSL	hsl(99, 62%, 39%)
HSV	hsv(99, 77%, 63%)
CMYK	cmyk(49.4%, 0%, 76.9%, 37.3%)
CIE-LAB	lab(59.00, -45.48, 52.75)
CIE-LCH	lch(59.00, 69.65, 130.77°)
OKLab	oklab(63.14% -0.1263 0.1179)
OKLCH	oklch(63.14% 0.173 137)
XYZ	xyz(16.2976, 27.0234, 6.1072)
Luminance	0.2702 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A025 #7425A0

analogous

#8EA025 #51A025 #25A036

triadic

#51A025 #2551A0 #A02551

tetradic

#51A025 #258EA0 #7425A0 #A03625

square

#51A025 #258EA0 #7425A0 #A03625

split-complementary

#51A025 #3625A0 #A0258E

monochromatic

#1F3D0E #386E1A #51A025 #6BD032 #8FDB64

Accessibility & contrast

On white

3.28

#51A025 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.40

#51A025 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51A025

6.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A025	#FFFFFF	#000000	##000000
##51A025	1.00	3.28	6.40	6.40
#FFFFFF	3.28	1.00	21.00	21.00
#000000	6.40	21.00	1.00	1.00
##000000	6.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A59207

Deuteranopia (green-blind)

#9B8C32

Tritanopia (blue-blind)

#4C9A89

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #51a025;
/* rgb */ color: rgb(81, 160, 37);
/* oklch */ color: oklch(63.1% 0.173 137.0);

Tailwind

colors: {
  custom: {
    50: '#8abd69',
    500: '#51a025',
    950: '#000000',
  },
}

SCSS

$custom: #51a025;
$custom-light: #8abd69;
$custom-dark: #000000;

JSON

{
  "hex": "#51a025",
  "rgb": {
    "r": 81,
    "g": 160,
    "b": 37
  },
  "hsl": {
    "h": 98.537,
    "s": 62.437,
    "l": 38.627
  },
  "oklch": {
    "l": 0.63139,
    "c": 0.17277,
    "h": 137
  },
  "luminance": 0.27025
}

Semantic roles & 50–950 ramp

primary

#51A025

secondary

#9E60C1

accent

#42E6AB

background

#F8FBF6

surface

#F0F6EB

border

#CBD0C6

text

#0C1207

muted

#7D817A

Preview Lab

Preview with #51A025

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

Preview Lab → · Contrast checker → · Palette generator →