#66AAEB#66AAEB

#66AAEB is a light, moderate cyan. Relative luminance 0.376; OKLCH L 72.0% C 0.118 H 248.7°. Best body text is #000000 at 8.51:1 contrast (WCAG AA passes).

Color values

HEX	#66AAEB
RGB	rgb(102, 170, 235)
HSL	hsl(209, 77%, 66%)
HSV	hsv(209, 57%, 92%)
CMYK	cmyk(56.6%, 27.7%, 0%, 7.8%)
CIE-LAB	lab(67.70, -2.93, -39.11)
CIE-LCH	lch(67.70, 39.22, 265.71°)
OKLab	oklab(71.97% -0.0428 -0.1099)
OKLCH	oklch(71.97% 0.118 248.7)
XYZ	xyz(34.8442, 37.5694, 83.9965)
Luminance	0.3757 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66AAEB #EBA766

analogous

#66EBE9 #66AAEB #6667EB

triadic

#66AAEB #EB66AA #AAEB66

tetradic

#66AAEB #E966EB #EBA766 #67EB66

square

#66AAEB #E966EB #EBA766 #67EB66

split-complementary

#66AAEB #EB6667 #EBE966

monochromatic

#196DBE #308CE4 #66AAEB #9CC8F2 #D2E6F9

Accessibility & contrast

On white

2.47

#66AAEB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.51

#66AAEB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66AAEB

8.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66AAEB	#FFFFFF	#000000	##000000
##66AAEB	1.00	2.47	8.51	8.51
#FFFFFF	2.47	1.00	21.00	21.00
#000000	8.51	21.00	1.00	1.00
##000000	8.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8FACEE

Deuteranopia (green-blind)

#7D9FEA

Tritanopia (blue-blind)

#00B9C1

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #66aaeb;
/* rgb */ color: rgb(102, 170, 235);
/* oklch */ color: oklch(72.0% 0.118 248.7);

Tailwind

colors: {
  custom: {
    50: '#9bc3f1',
    500: '#66aaeb',
    950: '#000000',
  },
}

SCSS

$custom: #66aaeb;
$custom-light: #9bc3f1;
$custom-dark: #000000;

JSON

{
  "hex": "#66aaeb",
  "rgb": {
    "r": 102,
    "g": 170,
    "b": 235
  },
  "hsl": {
    "h": 209.323,
    "s": 76.879,
    "l": 66.078
  },
  "oklch": {
    "l": 0.71971,
    "c": 0.11795,
    "h": 248.7
  },
  "luminance": 0.37572
}

Semantic roles & 50–950 ramp

primary

#66AAEB

secondary

#ECD6C1

accent

#700CD9

background

#FAFBFE

surface

#F3F7FD

border

#CDD0D5

text

#0F1217

muted

#7F8185

Preview Lab

Preview with #66AAEB

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

Preview Lab → · Contrast checker → · Palette generator →