#66DA8B#66DA8B

#66DA8B is a light, vivid green. Relative luminance 0.548; OKLCH L 80.1% C 0.154 H 151.8°. Best body text is #000000 at 11.97:1 contrast (WCAG AA passes).

Color values

HEX	#66DA8B
RGB	rgb(102, 218, 139)
HSL	hsl(139, 61%, 63%)
HSV	hsv(139, 53%, 85%)
CMYK	cmyk(53.2%, 0%, 36.2%, 14.5%)
CIE-LAB	lab(78.94, -50.14, 29.15)
CIE-LCH	lch(78.94, 58.00, 149.83°)
OKLab	oklab(80.11% -0.1361 0.0729)
OKLCH	oklch(80.11% 0.154 151.8)
XYZ	xyz(35.2086, 54.8286, 33.1487)
Luminance	0.5483 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66DA8B #DA66B5

analogous

#7BDA66 #66DA8B #66DAC5

triadic

#66DA8B #8B66DA #DA8B66

tetradic

#66DA8B #667BDA #DA66B5 #DAC566

square

#66DA8B #667BDA #DA66B5 #DAC566

split-complementary

#66DA8B #C566DA #DA667B

monochromatic

#269F4D #35CE66 #66DA8B #97E6B0 #C9F2D6

Accessibility & contrast

On white

1.75

#66DA8B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.97

#66DA8B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66DA8B

11.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66DA8B	#FFFFFF	#000000	##000000
##66DA8B	1.00	1.75	11.97	11.97
#FFFFFF	1.75	1.00	21.00	21.00
#000000	11.97	21.00	1.00	1.00
##000000	11.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DBCA86

Deuteranopia (green-blind)

#CABF90

Tritanopia (blue-blind)

#49D7C6

Achromatopsia (no color)

#C3C3C3

Design tokens & code

CSS

--color: #66da8b;
/* rgb */ color: rgb(102, 218, 139);
/* oklch */ color: oklch(80.1% 0.154 151.8);

Tailwind

colors: {
  custom: {
    50: '#9ae6ad',
    500: '#66da8b',
    950: '#000000',
  },
}

SCSS

$custom: #66da8b;
$custom-light: #9ae6ad;
$custom-dark: #000000;

JSON

{
  "hex": "#66da8b",
  "rgb": {
    "r": 102,
    "g": 218,
    "b": 139
  },
  "hsl": {
    "h": 139.138,
    "s": 61.053,
    "l": 62.745
  },
  "oklch": {
    "l": 0.80114,
    "c": 0.15443,
    "h": 151.8
  },
  "luminance": 0.54832
}

Semantic roles & 50–950 ramp

primary

#66DA8B

secondary

#A34184

accent

#1D92C9

background

#FCFEFD

surface

#F5FCF7

border

#CFD5D0

text

#0F1610

muted

#808481

Preview Lab

Preview with #66DA8B

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

Preview Lab → · Contrast checker → · Palette generator →