#51AD23#51AD23

#51AD23 is a light, vivid green. Relative luminance 0.318; OKLCH L 66.5% C 0.189 H 137.8°. Best body text is #000000 at 7.35:1 contrast (WCAG AA passes).

Color values

HEX	#51AD23
RGB	rgb(81, 173, 35)
HSL	hsl(100, 66%, 41%)
HSV	hsv(100, 80%, 68%)
CMYK	cmyk(53.2%, 0%, 79.8%, 32.2%)
CIE-LAB	lab(63.14, -50.63, 57.35)
CIE-LCH	lch(63.14, 76.50, 131.44°)
OKLab	oklab(66.55% -0.1403 0.1272)
OKLCH	oklch(66.55% 0.189 137.8)
XYZ	xyz(18.6396, 31.7564, 6.7372)
Luminance	0.3176 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51AD23 #7F23AD

analogous

#96AD23 #51AD23 #23AD3A

triadic

#51AD23 #2351AD #AD2351

tetradic

#51AD23 #2396AD #7F23AD #AD3A23

square

#51AD23 #2396AD #7F23AD #AD3A23

split-complementary

#51AD23 #3A23AD #AD2396

monochromatic

#21470E #397A19 #51AD23 #6CD637 #91E16A

Accessibility & contrast

On white

2.86

#51AD23 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.35

#51AD23 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51AD23

7.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51AD23	#FFFFFF	#000000	##000000
##51AD23	1.00	2.86	7.35	7.35
#FFFFFF	2.86	1.00	21.00	21.00
#000000	7.35	21.00	1.00	1.00
##000000	7.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B39E00

Deuteranopia (green-blind)

#A79633

Tritanopia (blue-blind)

#4AA794

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #51ad23;
/* rgb */ color: rgb(81, 173, 35);
/* oklch */ color: oklch(66.5% 0.189 137.8);

Tailwind

colors: {
  custom: {
    50: '#8bc66a',
    500: '#51ad23',
    950: '#000000',
  },
}

SCSS

$custom: #51ad23;
$custom-light: #8bc66a;
$custom-dark: #000000;

JSON

{
  "hex": "#51ad23",
  "rgb": {
    "r": 81,
    "g": 173,
    "b": 35
  },
  "hsl": {
    "h": 100,
    "s": 66.346,
    "l": 40.784
  },
  "oklch": {
    "l": 0.66549,
    "c": 0.18937,
    "h": 137.8
  },
  "luminance": 0.31758
}

Semantic roles & 50–950 ramp

primary

#51AD23

secondary

#A665C7

accent

#3FE9B0

background

#F9FCF6

surface

#F1F8EC

border

#CBD1C7

text

#0D1307

muted

#7E827A

Preview Lab

Preview with #51AD23

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

Preview Lab → · Contrast checker → · Palette generator →