#51E680#51E680

#51E680 is a very light, vivid green. Relative luminance 0.599; OKLCH L 82.2% C 0.190 H 150.3°. Best body text is #000000 at 12.98:1 contrast (WCAG AA passes).

Color values

HEX	#51E680
RGB	rgb(81, 230, 128)
HSL	hsl(139, 75%, 61%)
HSV	hsv(139, 65%, 90%)
CMYK	cmyk(64.8%, 0%, 44.3%, 9.8%)
CIE-LAB	lab(81.78, -61.11, 38.30)
CIE-LCH	lch(81.78, 72.12, 147.93°)
OKLab	oklab(82.22% -0.1648 0.0941)
OKLCH	oklch(82.22% 0.19 150.3)
XYZ	xyz(35.5837, 59.8977, 30.1040)
Luminance	0.5990 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E680 #E651B7

analogous

#6CE651 #51E680 #51E6CA

triadic

#51E680 #8051E6 #E68051

tetradic

#51E680 #516CE6 #E651B7 #E6CA51

square

#51E680 #516CE6 #E651B7 #E6CA51

split-complementary

#51E680 #CA51E6 #E6516C

monochromatic

#18A544 #1FDA5A #51E680 #87EEA7 #BCF5CE

Accessibility & contrast

On white

1.62

#51E680 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.98

#51E680 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E680

12.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E680	#FFFFFF	#000000	##000000
##51E680	1.00	1.62	12.98	12.98
#FFFFFF	1.62	1.00	21.00	21.00
#000000	12.98	21.00	1.00	1.00
##000000	12.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E7D378

Deuteranopia (green-blind)

#D5C687

Tritanopia (blue-blind)

#0DE2CD

Achromatopsia (no color)

#CBCBCB

Design tokens & code

CSS

--color: #51e680;
/* rgb */ color: rgb(81, 230, 128);
/* oklch */ color: oklch(82.2% 0.190 150.3);

Tailwind

colors: {
  custom: {
    50: '#92efa6',
    500: '#51e680',
    950: '#000000',
  },
}

SCSS

$custom: #51e680;
$custom-light: #92efa6;
$custom-dark: #000000;

JSON

{
  "hex": "#51e680",
  "rgb": {
    "r": 81,
    "g": 230,
    "b": 128
  },
  "hsl": {
    "h": 138.926,
    "s": 74.874,
    "l": 60.98
  },
  "oklch": {
    "l": 0.82221,
    "c": 0.18981,
    "h": 150.3
  },
  "luminance": 0.59901
}

Semantic roles & 50–950 ramp

primary

#51E680

secondary

#A73483

accent

#0E98D7

background

#FCFFFC

surface

#F5FEF6

border

#CFD6D0

text

#0E170F

muted

#7F8580

Preview Lab

Preview with #51E680

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

Preview Lab → · Contrast checker → · Palette generator →