#51E690#51E690

#51E690 is a very light, vivid green. Relative luminance 0.604; OKLCH L 82.5% C 0.175 H 154.2°. Best body text is #000000 at 13.07:1 contrast (WCAG AA passes).

Color values

HEX	#51E690
RGB	rgb(81, 230, 144)
HSL	hsl(145, 75%, 61%)
HSV	hsv(145, 65%, 90%)
CMYK	cmyk(64.8%, 0%, 37.4%, 9.8%)
CIE-LAB	lab(82.03, -58.38, 30.60)
CIE-LCH	lch(82.03, 65.91, 152.34°)
OKLab	oklab(82.51% -0.1579 0.0765)
OKLCH	oklch(82.51% 0.175 154.2)
XYZ	xyz(36.7210, 60.3527, 36.0942)
Luminance	0.6036 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E690 #E651A7

analogous

#5CE651 #51E690 #51E6DA

triadic

#51E690 #9051E6 #E69051

tetradic

#51E690 #515CE6 #E651A7 #E6DA51

square

#51E690 #515CE6 #E651A7 #E6DA51

split-complementary

#51E690 #DA51E6 #E6515C

monochromatic

#18A553 #1FDA6E #51E690 #87EEB2 #BCF5D4

Accessibility & contrast

On white

1.61

#51E690 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.07

#51E690 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E690

13.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E690	#FFFFFF	#000000	##000000
##51E690	1.00	1.61	13.07	13.07
#FFFFFF	1.61	1.00	21.00	21.00
#000000	13.07	21.00	1.00	1.00
##000000	13.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E6D48A

Deuteranopia (green-blind)

#D2C796

Tritanopia (blue-blind)

#00E3D0

Achromatopsia (no color)

#CCCCCC

Design tokens & code

CSS

--color: #51e690;
/* rgb */ color: rgb(81, 230, 144);
/* oklch */ color: oklch(82.5% 0.175 154.2);

Tailwind

colors: {
  custom: {
    50: '#91efb1',
    500: '#51e690',
    950: '#000000',
  },
}

SCSS

$custom: #51e690;
$custom-light: #91efb1;
$custom-dark: #000000;

JSON

{
  "hex": "#51e690",
  "rgb": {
    "r": 81,
    "g": 230,
    "b": 144
  },
  "hsl": {
    "h": 145.369,
    "s": 74.874,
    "l": 60.98
  },
  "oklch": {
    "l": 0.82505,
    "c": 0.17546,
    "h": 154.2
  },
  "luminance": 0.60357
}

Semantic roles & 50–950 ramp

primary

#51E690

secondary

#A73476

accent

#0E82D7

background

#FCFFFD

surface

#F5FEF7

border

#CFD6D0

text

#0E1711

muted

#7F8581

Preview Lab

Preview with #51E690

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

Preview Lab → · Contrast checker → · Palette generator →