#51E645#51E645

#51E645 is a light, highly saturated green. Relative luminance 0.588; OKLCH L 81.5% C 0.236 H 142.0°. Best body text is #000000 at 12.75:1 contrast (WCAG AA passes).

Color values

HEX	#51E645
RGB	rgb(81, 230, 69)
HSL	hsl(116, 76%, 59%)
HSV	hsv(116, 70%, 90%)
CMYK	cmyk(64.8%, 0%, 70%, 9.8%)
CIE-LAB	lab(81.16, -68.24, 63.67)
CIE-LCH	lch(81.16, 93.33, 136.98°)
OKLab	oklab(81.51% -0.1859 0.145)
OKLCH	oklch(81.51% 0.236 142)
XYZ	xyz(32.7625, 58.7693, 15.2461)
Luminance	0.5877 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E645 #DA45E6

analogous

#A1E645 #51E645 #45E689

triadic

#51E645 #4551E6 #E64551

tetradic

#51E645 #45A1E6 #DA45E6 #E68945

square

#51E645 #45A1E6 #DA45E6 #E68945

split-complementary

#51E645 #8945E6 #E645A1

monochromatic

#1F9C15 #2AD21C #51E645 #83ED7B #B6F5B1

Accessibility & contrast

On white

1.65

#51E645 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.75

#51E645 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E645

12.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E645	#FFFFFF	#000000	##000000
##51E645	1.00	1.65	12.75	12.75
#FFFFFF	1.65	1.00	21.00	21.00
#000000	12.75	21.00	1.00	1.00
##000000	12.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EBD12B

Deuteranopia (green-blind)

#DAC555

Tritanopia (blue-blind)

#32DFC6

Achromatopsia (no color)

#CACACA

Design tokens & code

CSS

--color: #51e645;
/* rgb */ color: rgb(81, 230, 69);
/* oklch */ color: oklch(81.5% 0.236 142.0);

Tailwind

colors: {
  custom: {
    50: '#94ef81',
    500: '#51e645',
    950: '#000000',
  },
}

SCSS

$custom: #51e645;
$custom-light: #94ef81;
$custom-dark: #000000;

JSON

{
  "hex": "#51e645",
  "rgb": {
    "r": 81,
    "g": 230,
    "b": 69
  },
  "hsl": {
    "h": 115.528,
    "s": 76.303,
    "l": 58.627
  },
  "oklch": {
    "l": 0.8151,
    "c": 0.23575,
    "h": 142
  },
  "luminance": 0.58773
}

Semantic roles & 50–950 ramp

primary

#51E645

secondary

#97309F

accent

#35F3E5

background

#FCFFFB

surface

#F5FEF2

border

#CFD6CC

text

#0F170B

muted

#80857E

Preview Lab

Preview with #51E645

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

Preview Lab → · Contrast checker → · Palette generator →