#66DA4E#66DA4E

#66DA4E is a light, highly saturated green. Relative luminance 0.535; OKLCH L 79.2% C 0.207 H 140.4°. Best body text is #000000 at 11.70:1 contrast (WCAG AA passes).

Color values

HEX	#66DA4E
RGB	rgb(102, 218, 78)
HSL	hsl(110, 65%, 58%)
HSV	hsv(110, 64%, 85%)
CMYK	cmyk(53.2%, 0%, 64.2%, 14.5%)
CIE-LAB	lab(78.18, -58.38, 57.16)
CIE-LCH	lch(78.18, 81.70, 135.60°)
OKLab	oklab(79.24% -0.1599 0.1322)
OKLCH	oklch(79.24% 0.207 140.4)
XYZ	xyz(31.9246, 53.5151, 15.8534)
Luminance	0.5352 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66DA4E #C24EDA

analogous

#ACDA4E #66DA4E #4EDA7C

triadic

#66DA4E #4E66DA #DA4E66

tetradic

#66DA4E #4EACDA #C24EDA #DA7C4E

square

#66DA4E #4EACDA #C24EDA #DA7C4E

split-complementary

#66DA4E #7C4EDA #DA4EAC

monochromatic

#31901E #43C229 #66DA4E #92E581 #BEEFB3

Accessibility & contrast

On white

1.79

#66DA4E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.70

#66DA4E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66DA4E

11.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66DA4E	#FFFFFF	#000000	##000000
##66DA4E	1.00	1.79	11.70	11.70
#FFFFFF	1.79	1.00	21.00	21.00
#000000	11.70	21.00	1.00	1.00
##000000	11.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E0C73C

Deuteranopia (green-blind)

#D1BE5A

Tritanopia (blue-blind)

#59D3BD

Achromatopsia (no color)

#C1C1C1

Design tokens & code

CSS

--color: #66da4e;
/* rgb */ color: rgb(102, 218, 78);
/* oklch */ color: oklch(79.2% 0.207 140.4);

Tailwind

colors: {
  custom: {
    50: '#9ce685',
    500: '#66da4e',
    950: '#000000',
  },
}

SCSS

$custom: #66da4e;
$custom-light: #9ce685;
$custom-dark: #000000;

JSON

{
  "hex": "#66da4e",
  "rgb": {
    "r": 102,
    "g": 218,
    "b": 78
  },
  "hsl": {
    "h": 109.714,
    "s": 65.421,
    "l": 58.039
  },
  "oklch": {
    "l": 0.79238,
    "c": 0.20746,
    "h": 140.4
  },
  "luminance": 0.53518
}

Semantic roles & 50–950 ramp

primary

#66DA4E

secondary

#853795

accent

#3FE8CB

background

#FCFEFB

surface

#F6FCF2

border

#D0D5CC

text

#0F160B

muted

#80847E

Preview Lab

Preview with #66DA4E

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

Preview Lab → · Contrast checker → · Palette generator →