#66DA4F#66DA4F

#66DA4F is a light, highly saturated green. Relative luminance 0.535; OKLCH L 79.2% C 0.207 H 140.5°. Best body text is #000000 at 11.71:1 contrast (WCAG AA passes).

Color values

HEX	#66DA4F
RGB	rgb(102, 218, 79)
HSL	hsl(110, 65%, 58%)
HSV	hsv(110, 64%, 85%)
CMYK	cmyk(53.2%, 0%, 63.8%, 14.5%)
CIE-LAB	lab(78.19, -58.28, 56.76)
CIE-LCH	lch(78.19, 81.35, 135.76°)
OKLab	oklab(79.25% -0.1596 0.1314)
OKLCH	oklch(79.25% 0.207 140.5)
XYZ	xyz(31.9608, 53.5295, 16.0436)
Luminance	0.5353 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66DA4F #C34FDA

analogous

#ABDA4F #66DA4F #4FDA7D

triadic

#66DA4F #4F66DA #DA4F66

tetradic

#66DA4F #4FABDA #C34FDA #DA7D4F

square

#66DA4F #4FABDA #C34FDA #DA7D4F

split-complementary

#66DA4F #7D4FDA #DA4FAB

monochromatic

#31901E #42C329 #66DA4F #92E582 #BEEFB4

Accessibility & contrast

On white

1.79

#66DA4F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.71

#66DA4F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66DA4F

11.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66DA4F	#FFFFFF	#000000	##000000
##66DA4F	1.00	1.79	11.71	11.71
#FFFFFF	1.79	1.00	21.00	21.00
#000000	11.71	21.00	1.00	1.00
##000000	11.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E0C73E

Deuteranopia (green-blind)

#D1BE5B

Tritanopia (blue-blind)

#59D3BD

Achromatopsia (no color)

#C1C1C1

Design tokens & code

CSS

--color: #66da4f;
/* rgb */ color: rgb(102, 218, 79);
/* oklch */ color: oklch(79.2% 0.207 140.5);

Tailwind

colors: {
  custom: {
    50: '#9ce686',
    500: '#66da4f',
    950: '#000000',
  },
}

SCSS

$custom: #66da4f;
$custom-light: #9ce686;
$custom-dark: #000000;

JSON

{
  "hex": "#66da4f",
  "rgb": {
    "r": 102,
    "g": 218,
    "b": 79
  },
  "hsl": {
    "h": 110.072,
    "s": 65.258,
    "l": 58.235
  },
  "oklch": {
    "l": 0.79248,
    "c": 0.20674,
    "h": 140.5
  },
  "luminance": 0.53532
}

Semantic roles & 50–950 ramp

primary

#66DA4F

secondary

#863895

accent

#40E8CC

background

#FCFEFB

surface

#F6FCF2

border

#D0D5CC

text

#0F160B

muted

#80847E

Preview Lab

Preview with #66DA4F

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

Preview Lab → · Contrast checker → · Palette generator →