#66D2EE#66D2EE

#66D2EE is a light, moderate cyan. Relative luminance 0.551; OKLCH L 81.1% C 0.106 H 217.2°. Best body text is #000000 at 12.02:1 contrast (WCAG AA passes).

Color values

HEX	#66D2EE
RGB	rgb(102, 210, 238)
HSL	hsl(192, 80%, 67%)
HSV	hsv(192, 57%, 93%)
CMYK	cmyk(57.1%, 11.8%, 0%, 6.7%)
CIE-LAB	lab(79.09, -23.23, -23.18)
CIE-LCH	lch(79.09, 32.81, 224.95°)
OKLab	oklab(81.06% -0.0847 -0.0643)
OKLCH	oklch(81.06% 0.106 217.2)
XYZ	xyz(43.9526, 55.0868, 89.1889)
Luminance	0.5509 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66D2EE #EE8266

analogous

#66EEC6 #66D2EE #668EEE

triadic

#66D2EE #EE66D2 #D2EE66

tetradic

#66D2EE #C666EE #EE8266 #8EEE66

square

#66D2EE #C666EE #EE8266 #8EEE66

split-complementary

#66D2EE #EE668E #EEC666

monochromatic

#16A0C4 #2FC2E8 #66D2EE #9DE2F4 #D4F2FA

Accessibility & contrast

On white

1.75

#66D2EE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.02

#66D2EE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D2EE

12.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66D2EE	#FFFFFF	#000000	##000000
##66D2EE	1.00	1.75	12.02	12.02
#FFFFFF	1.75	1.00	21.00	21.00
#000000	12.02	21.00	1.00	1.00
##000000	12.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BFCCF0

Deuteranopia (green-blind)

#ABBDEE

Tritanopia (blue-blind)

#00DCDB

Achromatopsia (no color)

#C4C4C4

Design tokens & code

CSS

--color: #66d2ee;
/* rgb */ color: rgb(102, 210, 238);
/* oklch */ color: oklch(81.1% 0.106 217.2);

Tailwind

colors: {
  custom: {
    50: '#9de0f3',
    500: '#66d2ee',
    950: '#000000',
  },
}

SCSS

$custom: #66d2ee;
$custom-light: #9de0f3;
$custom-dark: #000000;

JSON

{
  "hex": "#66d2ee",
  "rgb": {
    "r": 102,
    "g": 210,
    "b": 238
  },
  "hsl": {
    "h": 192.353,
    "s": 80,
    "l": 66.667
  },
  "oklch": {
    "l": 0.81056,
    "c": 0.10632,
    "h": 217.2
  },
  "luminance": 0.55091
}

Semantic roles & 50–950 ramp

primary

#66D2EE

secondary

#C25337

accent

#3509DC

background

#FCFEFF

surface

#F6FCFE

border

#D0D5D6

text

#0F1517

muted

#808485

Preview Lab

Preview with #66D2EE

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

Preview Lab → · Contrast checker → · Palette generator →