#66D2EA#66D2EA

#66D2EA is a light, moderate cyan. Relative luminance 0.549; OKLCH L 80.9% C 0.104 H 214.3°. Best body text is #000000 at 11.97:1 contrast (WCAG AA passes).

Color values

HEX	#66D2EA
RGB	rgb(102, 210, 234)
HSL	hsl(191, 76%, 66%)
HSV	hsv(191, 56%, 92%)
CMYK	cmyk(56.4%, 10.3%, 0%, 8.2%)
CIE-LAB	lab(78.96, -24.36, -21.25)
CIE-LCH	lch(78.96, 32.32, 221.09°)
OKLab	oklab(80.9% -0.0862 -0.0589)
OKLCH	oklch(80.9% 0.104 214.3)
XYZ	xyz(43.3714, 54.8543, 86.1282)
Luminance	0.5486 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66D2EA #EA7E66

analogous

#66EAC0 #66D2EA #6690EA

triadic

#66D2EA #EA66D2 #D2EA66

tetradic

#66D2EA #C066EA #EA7E66 #90EA66

square

#66D2EA #C066EA #EA7E66 #90EA66

split-complementary

#66D2EA #EA6690 #EAC066

monochromatic

#1A9EBC #30C2E3 #66D2EA #9CE2F1 #D2F2F9

Accessibility & contrast

On white

1.75

#66D2EA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.97

#66D2EA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D2EA

11.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66D2EA	#FFFFFF	#000000	##000000
##66D2EA	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)

#C0CCEB

Deuteranopia (green-blind)

#ADBDEA

Tritanopia (blue-blind)

#00DBD9

Achromatopsia (no color)

#C3C3C3

Design tokens & code

CSS

--color: #66d2ea;
/* rgb */ color: rgb(102, 210, 234);
/* oklch */ color: oklch(80.9% 0.104 214.3);

Tailwind

colors: {
  custom: {
    50: '#9ce0f0',
    500: '#66d2ea',
    950: '#000000',
  },
}

SCSS

$custom: #66d2ea;
$custom-light: #9ce0f0;
$custom-dark: #000000;

JSON

{
  "hex": "#66d2ea",
  "rgb": {
    "r": 102,
    "g": 210,
    "b": 234
  },
  "hsl": {
    "h": 190.909,
    "s": 75.862,
    "l": 65.882
  },
  "oklch": {
    "l": 0.80904,
    "c": 0.10439,
    "h": 214.3
  },
  "luminance": 0.54858
}

Semantic roles & 50–950 ramp

primary

#66D2EA

secondary

#BB5139

accent

#320DD8

background

#FCFEFF

surface

#F6FCFE

border

#D0D5D6

text

#0F1516

muted

#808485

Preview Lab

Preview with #66D2EA

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

Preview Lab → · Contrast checker → · Palette generator →