#66C2EB#66C2EB

#66C2EB is a light, moderate cyan. Relative luminance 0.474; OKLCH L 77.3% C 0.105 H 229.3°. Best body text is #000000 at 10.48:1 contrast (WCAG AA passes).

Color values

HEX	#66C2EB
RGB	rgb(102, 194, 235)
HSL	hsl(198, 77%, 66%)
HSV	hsv(198, 57%, 92%)
CMYK	cmyk(56.6%, 17.4%, 0%, 7.8%)
CIE-LAB	lab(74.45, -15.91, -28.67)
CIE-LCH	lch(74.45, 32.79, 240.97°)
OKLab	oklab(77.31% -0.0687 -0.0799)
OKLCH	oklch(77.31% 0.105 229.3)
XYZ	xyz(39.7609, 47.4028, 85.6355)
Luminance	0.4741 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66C2EB #EB8F66

analogous

#66EBD1 #66C2EB #667FEB

triadic

#66C2EB #EB66C2 #C2EB66

tetradic

#66C2EB #D166EB #EB8F66 #7FEB66

square

#66C2EB #D166EB #EB8F66 #7FEB66

split-complementary

#66C2EB #EB667F #EBD166

monochromatic

#198BBE #30ACE4 #66C2EB #9CD8F2 #D2EDF9

Accessibility & contrast

On white

2.00

#66C2EB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.48

#66C2EB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C2EB

10.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66C2EB	#FFFFFF	#000000	##000000
##66C2EB	1.00	2.00	10.48	10.48
#FFFFFF	2.00	1.00	21.00	21.00
#000000	10.48	21.00	1.00	1.00
##000000	10.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ADBFED

Deuteranopia (green-blind)

#9AB1EA

Tritanopia (blue-blind)

#00CECF

Achromatopsia (no color)

#B7B7B7

Design tokens & code

CSS

--color: #66c2eb;
/* rgb */ color: rgb(102, 194, 235);
/* oklch */ color: oklch(77.3% 0.105 229.3);

Tailwind

colors: {
  custom: {
    50: '#9cd4f1',
    500: '#66c2eb',
    950: '#000000',
  },
}

SCSS

$custom: #66c2eb;
$custom-light: #9cd4f1;
$custom-dark: #000000;

JSON

{
  "hex": "#66c2eb",
  "rgb": {
    "r": 102,
    "g": 194,
    "b": 235
  },
  "hsl": {
    "h": 198.496,
    "s": 76.879,
    "l": 66.078
  },
  "oklch": {
    "l": 0.77311,
    "c": 0.10536,
    "h": 229.3
  },
  "luminance": 0.47407
}

Semantic roles & 50–950 ramp

primary

#66C2EB

secondary

#ECCEC1

accent

#4C0CD9

background

#FAFDFE

surface

#F4FAFD

border

#CED3D5

text

#0F1416

muted

#7F8384

Preview Lab

Preview with #66C2EB

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

Preview Lab → · Contrast checker → · Palette generator →