#51AA25#51AA25

#51AA25 is a light, vivid green. Relative luminance 0.306; OKLCH L 65.8% C 0.185 H 137.7°. Best body text is #000000 at 7.13:1 contrast (WCAG AA passes).

Color values

HEX	#51AA25
RGB	rgb(81, 170, 37)
HSL	hsl(100, 64%, 41%)
HSV	hsv(100, 78%, 67%)
CMYK	cmyk(52.4%, 0%, 78.2%, 33.3%)
CIE-LAB	lab(62.19, -49.38, 55.83)
CIE-LCH	lch(62.19, 74.53, 131.49°)
OKLab	oklab(65.77% -0.1368 0.1243)
OKLCH	oklch(65.77% 0.185 137.7)
XYZ	xyz(18.1014, 30.6310, 6.7084)
Luminance	0.3063 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51AA25 #7E25AA

analogous

#93AA25 #51AA25 #25AA3B

triadic

#51AA25 #2551AA #AA2551

tetradic

#51AA25 #2593AA #7E25AA #AA3B25

square

#51AA25 #2593AA #7E25AA #AA3B25

split-complementary

#51AA25 #3B25AA #AA2593

monochromatic

#21450F #39781A #51AA25 #6CD438 #91DF6B

Accessibility & contrast

On white

2.95

#51AA25 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.13

#51AA25 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51AA25

7.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51AA25	#FFFFFF	#000000	##000000
##51AA25	1.00	2.95	7.13	7.13
#FFFFFF	2.95	1.00	21.00	21.00
#000000	7.13	21.00	1.00	1.00
##000000	7.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B09B00

Deuteranopia (green-blind)

#A49434

Tritanopia (blue-blind)

#4AA491

Achromatopsia (no color)

#969696

Design tokens & code

CSS

--color: #51aa25;
/* rgb */ color: rgb(81, 170, 37);
/* oklch */ color: oklch(65.8% 0.185 137.7);

Tailwind

colors: {
  custom: {
    50: '#8bc46a',
    500: '#51aa25',
    950: '#000000',
  },
}

SCSS

$custom: #51aa25;
$custom-light: #8bc46a;
$custom-dark: #000000;

JSON

{
  "hex": "#51aa25",
  "rgb": {
    "r": 81,
    "g": 170,
    "b": 37
  },
  "hsl": {
    "h": 100.15,
    "s": 64.251,
    "l": 40.588
  },
  "oklch": {
    "l": 0.65772,
    "c": 0.18484,
    "h": 137.7
  },
  "luminance": 0.30632
}

Semantic roles & 50–950 ramp

primary

#51AA25

secondary

#A566C5

accent

#41E7B0

background

#F9FCF6

surface

#F1F8EC

border

#CBD1C7

text

#0D1307

muted

#7E827A

Preview Lab

Preview with #51AA25

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

Preview Lab → · Contrast checker → · Palette generator →