#66EFDF#66EFDF

#66EFDF is a very light, vivid teal. Relative luminance 0.699; OKLCH L 87.2% C 0.122 H 184.8°. Best body text is #000000 at 14.98:1 contrast (WCAG AA passes).

Color values

HEX	#66EFDF
RGB	rgb(102, 239, 223)
HSL	hsl(173, 81%, 67%)
HSV	hsv(173, 57%, 94%)
CMYK	cmyk(57.3%, 0%, 6.7%, 6.3%)
CIE-LAB	lab(86.94, -40.99, -3.49)
CIE-LCH	lch(86.94, 41.14, 184.87°)
OKLab	oklab(87.23% -0.1212 -0.0101)
OKLCH	oklch(87.23% 0.122 184.8)
XYZ	xyz(49.6593, 69.8805, 80.6690)
Luminance	0.6988 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EFDF #EF6676

analogous

#66EF9B #66EFDF #66BAEF

triadic

#66EFDF #DF66EF #EFDF66

tetradic

#66EFDF #9B66EF #EF6676 #BAEF66

square

#66EFDF #9B66EF #EF6676 #BAEF66

split-complementary

#66EFDF #EF66BA #EF9B66

monochromatic

#15C6B1 #2FE9D3 #66EFDF #9DF5EB #D5FBF6

Accessibility & contrast

On white

1.40

#66EFDF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.98

#66EFDF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EFDF

14.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EFDF	#FFFFFF	#000000	##000000
##66EFDF	1.00	1.40	14.98	14.98
#FFFFFF	1.40	1.00	21.00	21.00
#000000	14.98	21.00	1.00	1.00
##000000	14.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E4E3DF

Deuteranopia (green-blind)

#CFD3E1

Tritanopia (blue-blind)

#00F4EA

Achromatopsia (no color)

#DADADA

Design tokens & code

CSS

--color: #66efdf;
/* rgb */ color: rgb(102, 239, 223);
/* oklch */ color: oklch(87.2% 0.122 184.8);

Tailwind

colors: {
  custom: {
    50: '#9ef5e8',
    500: '#66efdf',
    950: '#000000',
  },
}

SCSS

$custom: #66efdf;
$custom-light: #9ef5e8;
$custom-dark: #000000;

JSON

{
  "hex": "#66efdf",
  "rgb": {
    "r": 102,
    "g": 239,
    "b": 223
  },
  "hsl": {
    "h": 172.993,
    "s": 81.065,
    "l": 66.863
  },
  "oklch": {
    "l": 0.87233,
    "c": 0.1216,
    "h": 184.8
  },
  "luminance": 0.69885
}

Semantic roles & 50–950 ramp

primary

#66EFDF

secondary

#C33646

accent

#0821DD

background

#FCFFFE

surface

#F6FEFC

border

#D0D6D5

text

#101716

muted

#808584

Preview Lab

Preview with #66EFDF

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

Preview Lab → · Contrast checker → · Palette generator →