#66AAEA#66AAEA

#66AAEA is a light, moderate cyan. Relative luminance 0.375; OKLCH L 71.9% C 0.117 H 248.4°. Best body text is #000000 at 8.50:1 contrast (WCAG AA passes).

Color values

HEX	#66AAEA
RGB	rgb(102, 170, 234)
HSL	hsl(209, 76%, 66%)
HSV	hsv(209, 56%, 92%)
CMYK	cmyk(56.4%, 27.4%, 0%, 8.2%)
CIE-LAB	lab(67.66, -3.24, -38.63)
CIE-LCH	lch(67.66, 38.77, 265.20°)
OKLab	oklab(71.92% -0.043 -0.1085)
OKLCH	oklch(71.92% 0.117 248.4)
XYZ	xyz(34.7001, 37.5117, 83.2378)
Luminance	0.3751 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66AAEA #EAA666

analogous

#66EAE8 #66AAEA #6668EA

triadic

#66AAEA #EA66AA #AAEA66

tetradic

#66AAEA #E866EA #EAA666 #68EA66

square

#66AAEA #E866EA #EAA666 #68EA66

split-complementary

#66AAEA #EA6668 #EAE866

monochromatic

#1A6DBC #308CE3 #66AAEA #9CC8F1 #D2E6F9

Accessibility & contrast

On white

2.47

#66AAEA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.50

#66AAEA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66AAEA

8.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66AAEA	#FFFFFF	#000000	##000000
##66AAEA	1.00	2.47	8.50	8.50
#FFFFFF	2.47	1.00	21.00	21.00
#000000	8.50	21.00	1.00	1.00
##000000	8.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8FACED

Deuteranopia (green-blind)

#7E9FE9

Tritanopia (blue-blind)

#00B9C0

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #66aaea;
/* rgb */ color: rgb(102, 170, 234);
/* oklch */ color: oklch(71.9% 0.117 248.4);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#66aaea",
  "rgb": {
    "r": 102,
    "g": 170,
    "b": 234
  },
  "hsl": {
    "h": 209.091,
    "s": 75.862,
    "l": 65.882
  },
  "oklch": {
    "l": 0.71923,
    "c": 0.11677,
    "h": 248.4
  },
  "luminance": 0.37515
}

Semantic roles & 50–950 ramp

primary

#66AAEA

secondary

#ECD5C0

accent

#700DD8

background

#FAFBFE

surface

#F3F7FD

border

#CDD0D5

text

#0F1216

muted

#7F8184

Preview Lab

Preview with #66AAEA

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

Preview Lab → · Contrast checker → · Palette generator →