#51CC40#51CC40

#51CC40 is a light, highly saturated green. Relative luminance 0.453; OKLCH L 74.8% C 0.209 H 141.3°. Best body text is #000000 at 10.06:1 contrast (WCAG AA passes).

Color values

HEX	#51CC40
RGB	rgb(81, 204, 64)
HSL	hsl(113, 58%, 53%)
HSV	hsv(113, 69%, 80%)
CMYK	cmyk(60.3%, 0%, 68.6%, 20%)
CIE-LAB	lab(73.09, -59.81, 57.11)
CIE-LCH	lch(73.09, 82.70, 136.32°)
OKLab	oklab(74.82% -0.1633 0.1306)
OKLCH	oklch(74.82% 0.209 141.3)
XYZ	xyz(25.9103, 45.3028, 12.2284)
Luminance	0.4531 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51CC40 #BB40CC

analogous

#97CC40 #51CC40 #40CC75

triadic

#51CC40 #4051CC #CC4051

tetradic

#51CC40 #4097CC #BB40CC #CC7540

square

#51CC40 #4097CC #BB40CC #CC7540

split-complementary

#51CC40 #7540CC #CC4097

monochromatic

#29731F #3AA32C #51CC40 #7DD970 #A9E6A1

Accessibility & contrast

On white

2.09

#51CC40 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.06

#51CC40 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51CC40

10.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51CC40	#FFFFFF	#000000	##000000
##51CC40	1.00	2.09	10.06	10.06
#FFFFFF	2.09	1.00	21.00	21.00
#000000	10.06	21.00	1.00	1.00
##000000	10.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D1BA2B

Deuteranopia (green-blind)

#C2B04D

Tritanopia (blue-blind)

#3EC6B0

Achromatopsia (no color)

#B3B3B3

Design tokens & code

CSS

--color: #51cc40;
/* rgb */ color: rgb(81, 204, 64);
/* oklch */ color: oklch(74.8% 0.209 141.3);

Tailwind

colors: {
  custom: {
    50: '#8fdd7c',
    500: '#51cc40',
    950: '#000000',
  },
}

SCSS

$custom: #51cc40;
$custom-light: #8fdd7c;
$custom-dark: #000000;

JSON

{
  "hex": "#51cc40",
  "rgb": {
    "r": 81,
    "g": 204,
    "b": 64
  },
  "hsl": {
    "h": 112.714,
    "s": 57.851,
    "l": 52.549
  },
  "oklch": {
    "l": 0.7482,
    "c": 0.20917,
    "h": 141.3
  },
  "luminance": 0.45305
}

Semantic roles & 50–950 ramp

primary

#51CC40

secondary

#CB95D2

accent

#47E1CE

background

#F9FDF7

surface

#F2FBEE

border

#CCD4C9

text

#0E150A

muted

#7E837C

Preview Lab

Preview with #51CC40

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

Preview Lab → · Contrast checker → · Palette generator →