#66AAE0#66AAE0

#66AAE0 is a light, moderate cyan. Relative luminance 0.370; OKLCH L 71.5% C 0.105 H 244.0°. Best body text is #000000 at 8.39:1 contrast (WCAG AA passes).

Color values

HEX	#66AAE0
RGB	rgb(102, 170, 224)
HSL	hsl(207, 66%, 64%)
HSV	hsv(207, 54%, 88%)
CMYK	cmyk(54.5%, 24.1%, 0%, 12.2%)
CIE-LAB	lab(67.24, -6.30, -33.80)
CIE-LCH	lch(67.24, 34.38, 259.44°)
OKLab	oklab(71.46% -0.0462 -0.0946)
OKLCH	oklch(71.46% 0.105 244)
XYZ	xyz(33.3039, 36.9532, 75.8842)
Luminance	0.3696 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66AAE0 #E09C66

analogous

#66E0D9 #66AAE0 #666DE0

triadic

#66AAE0 #E066AA #AAE066

tetradic

#66AAE0 #D966E0 #E09C66 #6DE066

square

#66AAE0 #D966E0 #E09C66 #6DE066

split-complementary

#66AAE0 #E0666D #E0D966

monochromatic

#226EA9 #338ED6 #66AAE0 #99C6EA #CCE3F5

Accessibility & contrast

On white

2.50

#66AAE0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.39

#66AAE0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66AAE0

8.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66AAE0	#FFFFFF	#000000	##000000
##66AAE0	1.00	2.50	8.39	8.39
#FFFFFF	2.50	1.00	21.00	21.00
#000000	8.39	21.00	1.00	1.00
##000000	8.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#93ABE2

Deuteranopia (green-blind)

#829EDF

Tritanopia (blue-blind)

#09B7BC

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #66aae0;
/* rgb */ color: rgb(102, 170, 224);
/* oklch */ color: oklch(71.5% 0.105 244.0);

Tailwind

colors: {
  custom: {
    50: '#9ac3ea',
    500: '#66aae0',
    950: '#000000',
  },
}

SCSS

$custom: #66aae0;
$custom-light: #9ac3ea;
$custom-dark: #000000;

JSON

{
  "hex": "#66aae0",
  "rgb": {
    "r": 102,
    "g": 170,
    "b": 224
  },
  "hsl": {
    "h": 206.557,
    "s": 66.304,
    "l": 63.922
  },
  "oklch": {
    "l": 0.71457,
    "c": 0.10527,
    "h": 244
  },
  "luminance": 0.36956
}

Semantic roles & 50–950 ramp

primary

#66AAE0

secondary

#E6CEBC

accent

#6817CE

background

#F9FBFE

surface

#F2F7FD

border

#CCD0D5

text

#0F1216

muted

#7E8184

Preview Lab

Preview with #66AAE0

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

Preview Lab → · Contrast checker → · Palette generator →