#66D8EA#66D8EA

#66D8EA is a very light, moderate teal. Relative luminance 0.579; OKLCH L 82.3% C 0.106 H 209.2°. Best body text is #000000 at 12.58:1 contrast (WCAG AA passes).

Color values

HEX	#66D8EA
RGB	rgb(102, 216, 234)
HSL	hsl(188, 76%, 66%)
HSV	hsv(188, 56%, 92%)
CMYK	cmyk(56.4%, 7.7%, 0%, 8.2%)
CIE-LAB	lab(80.67, -27.32, -18.66)
CIE-LCH	lch(80.67, 33.08, 214.33°)
OKLab	oklab(82.28% -0.0926 -0.0516)
OKLCH	oklch(82.28% 0.106 209.2)
XYZ	xyz(44.8806, 57.8727, 86.6313)
Luminance	0.5788 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66D8EA #EA7866

analogous

#66EABA #66D8EA #6696EA

triadic

#66D8EA #EA66D8 #D8EA66

tetradic

#66D8EA #BA66EA #EA7866 #96EA66

square

#66D8EA #BA66EA #EA7866 #96EA66

split-complementary

#66D8EA #EA6696 #EABA66

monochromatic

#1AA6BC #30CAE3 #66D8EA #9CE6F1 #D2F3F9

Accessibility & contrast

On white

1.67

#66D8EA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.58

#66D8EA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D8EA

12.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66D8EA	#FFFFFF	#000000	##000000
##66D8EA	1.00	1.67	12.58	12.58
#FFFFFF	1.67	1.00	21.00	21.00
#000000	12.58	21.00	1.00	1.00
##000000	12.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C8D1EB

Deuteranopia (green-blind)

#B3C2EA

Tritanopia (blue-blind)

#00E1DD

Achromatopsia (no color)

#C8C8C8

Design tokens & code

CSS

--color: #66d8ea;
/* rgb */ color: rgb(102, 216, 234);
/* oklch */ color: oklch(82.3% 0.106 209.2);

Tailwind

colors: {
  custom: {
    50: '#9de4f0',
    500: '#66d8ea',
    950: '#000000',
  },
}

SCSS

$custom: #66d8ea;
$custom-light: #9de4f0;
$custom-dark: #000000;

JSON

{
  "hex": "#66d8ea",
  "rgb": {
    "r": 102,
    "g": 216,
    "b": 234
  },
  "hsl": {
    "h": 188.182,
    "s": 75.862,
    "l": 65.882
  },
  "oklch": {
    "l": 0.82277,
    "c": 0.10599,
    "h": 209.2
  },
  "luminance": 0.57877
}

Semantic roles & 50–950 ramp

primary

#66D8EA

secondary

#BB4B39

accent

#290DD8

background

#FCFEFF

surface

#F6FCFE

border

#D0D5D6

text

#0F1516

muted

#808485

Preview Lab

Preview with #66D8EA

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

Preview Lab → · Contrast checker → · Palette generator →