#66E54E#66E54E

#66E54E is a light, highly saturated green. Relative luminance 0.594; OKLCH L 82.0% C 0.221 H 140.7°. Best body text is #000000 at 12.88:1 contrast (WCAG AA passes).

Color values

HEX	#66E54E
RGB	rgb(102, 229, 78)
HSL	hsl(110, 74%, 60%)
HSV	hsv(110, 66%, 90%)
CMYK	cmyk(55.5%, 0%, 65.9%, 10.2%)
CIE-LAB	lab(81.52, -62.38, 60.79)
CIE-LCH	lch(81.52, 87.10, 135.74°)
OKLab	oklab(81.99% -0.1708 0.1398)
OKLCH	oklch(81.99% 0.221 140.7)
XYZ	xyz(34.8723, 59.4105, 16.8360)
Luminance	0.5941 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66E54E #CD4EE5

analogous

#B1E54E #66E54E #4EE582

triadic

#66E54E #4E66E5 #E54E66

tetradic

#66E54E #4EB1E5 #CD4EE5 #E5824E

square

#66E54E #4EB1E5 #CD4EE5 #E5824E

split-complementary

#66E54E #824EE5 #E54EB1

monochromatic

#2DA118 #3DD61F #66E54E #94ED83 #C2F5B9

Accessibility & contrast

On white

1.63

#66E54E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.88

#66E54E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66E54E

12.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66E54E	#FFFFFF	#000000	##000000
##66E54E	1.00	1.63	12.88	12.88
#FFFFFF	1.63	1.00	21.00	21.00
#000000	12.88	21.00	1.00	1.00
##000000	12.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EBD13A

Deuteranopia (green-blind)

#DBC65C

Tritanopia (blue-blind)

#56DEC6

Achromatopsia (no color)

#CBCBCB

Design tokens & code

CSS

--color: #66e54e;
/* rgb */ color: rgb(102, 229, 78);
/* oklch */ color: oklch(82.0% 0.221 140.7);

Tailwind

colors: {
  custom: {
    50: '#9dee86',
    500: '#66e54e',
    950: '#000000',
  },
}

SCSS

$custom: #66e54e;
$custom-light: #9dee86;
$custom-dark: #000000;

JSON

{
  "hex": "#66e54e",
  "rgb": {
    "r": 102,
    "g": 229,
    "b": 78
  },
  "hsl": {
    "h": 110.464,
    "s": 74.384,
    "l": 60.196
  },
  "oklch": {
    "l": 0.81989,
    "c": 0.2207,
    "h": 140.7
  },
  "luminance": 0.59413
}

Semantic roles & 50–950 ramp

primary

#66E54E

secondary

#9234A4

accent

#0FD7B7

background

#FCFFFC

surface

#F6FEF3

border

#D0D6CD

text

#0F160C

muted

#80857F

Preview Lab

Preview with #66E54E

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

Preview Lab → · Contrast checker → · Palette generator →