#51CC3B#51CC3B

#51CC3B is a light, highly saturated green. Relative luminance 0.453; OKLCH L 74.8% C 0.212 H 140.9°. Best body text is #000000 at 10.05:1 contrast (WCAG AA passes).

Color values

HEX	#51CC3B
RGB	rgb(81, 204, 59)
HSL	hsl(111, 59%, 52%)
HSV	hsv(111, 71%, 80%)
CMYK	cmyk(60.3%, 0%, 71.1%, 20%)
CIE-LAB	lab(73.06, -60.23, 58.97)
CIE-LCH	lch(73.06, 84.29, 135.60°)
OKLab	oklab(74.78% -0.1647 0.1339)
OKLCH	oklch(74.78% 0.212 140.9)
XYZ	xyz(25.7744, 45.2484, 11.5124)
Luminance	0.4525 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51CC3B #B63BCC

analogous

#99CC3B #51CC3B #3BCC6E

triadic

#51CC3B #3B51CC #CC3B51

tetradic

#51CC3B #3B99CC #B63BCC #CC6E3B

square

#51CC3B #3B99CC #B63BCC #CC6E3B

split-complementary

#51CC3B #6E3BCC #CC3B99

monochromatic

#2A701D #3CA02A #51CC3B #7CD96C #A7E59C

Accessibility & contrast

On white

2.09

#51CC3B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.05

#51CC3B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51CC3B

10.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51CC3B	#FFFFFF	#000000	##000000
##51CC3B	1.00	2.09	10.05	10.05
#FFFFFF	2.09	1.00	21.00	21.00
#000000	10.05	21.00	1.00	1.00
##000000	10.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D1BA23

Deuteranopia (green-blind)

#C2AF49

Tritanopia (blue-blind)

#3FC6AF

Achromatopsia (no color)

#B3B3B3

Design tokens & code

CSS

--color: #51cc3b;
/* rgb */ color: rgb(81, 204, 59);
/* oklch */ color: oklch(74.8% 0.212 140.9);

Tailwind

colors: {
  custom: {
    50: '#8fdd79',
    500: '#51cc3b',
    950: '#000000',
  },
}

SCSS

$custom: #51cc3b;
$custom-light: #8fdd79;
$custom-dark: #000000;

JSON

{
  "hex": "#51cc3b",
  "rgb": {
    "r": 81,
    "g": 204,
    "b": 59
  },
  "hsl": {
    "h": 110.897,
    "s": 58.704,
    "l": 51.569
  },
  "oklch": {
    "l": 0.74779,
    "c": 0.21232,
    "h": 140.9
  },
  "luminance": 0.45251
}

Semantic roles & 50–950 ramp

primary

#51CC3B

secondary

#C892D1

accent

#46E2CA

background

#F9FDF7

surface

#F2FBEE

border

#CCD4C9

text

#0E150A

muted

#7E837C

Preview Lab

Preview with #51CC3B

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

Preview Lab → · Contrast checker → · Palette generator →