#66AEDF#66AEDF

#66AEDF is a light, moderate cyan. Relative luminance 0.384; OKLCH L 72.3% C 0.102 H 240.0°. Best body text is #000000 at 8.68:1 contrast (WCAG AA passes).

Color values

HEX	#66AEDF
RGB	rgb(102, 174, 223)
HSL	hsl(204, 65%, 64%)
HSV	hsv(204, 54%, 87%)
CMYK	cmyk(54.3%, 22%, 0%, 12.5%)
CIE-LAB	lab(68.33, -8.80, -31.57)
CIE-LCH	lch(68.33, 32.77, 254.42°)
OKLab	oklab(72.3% -0.051 -0.0882)
OKLCH	oklch(72.3% 0.102 240)
XYZ	xyz(33.9300, 38.4217, 75.4258)
Luminance	0.3842 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66AEDF #DF9766

analogous

#66DFD4 #66AEDF #6671DF

triadic

#66AEDF #DF66AE #AEDF66

tetradic

#66AEDF #D466DF #DF9766 #71DF66

square

#66AEDF #D466DF #DF9766 #71DF66

split-complementary

#66AEDF #DF6671 #DFD466

monochromatic

#2372A8 #3393D4 #66AEDF #99C9EA #CBE4F4

Accessibility & contrast

On white

2.42

#66AEDF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.68

#66AEDF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66AEDF

8.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66AEDF	#FFFFFF	#000000	##000000
##66AEDF	1.00	2.42	8.68	8.68
#FFFFFF	2.42	1.00	21.00	21.00
#000000	8.68	21.00	1.00	1.00
##000000	8.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#98AEE1

Deuteranopia (green-blind)

#88A1DE

Tritanopia (blue-blind)

#08BABE

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #66aedf;
/* rgb */ color: rgb(102, 174, 223);
/* oklch */ color: oklch(72.3% 0.102 240.0);

Tailwind

colors: {
  custom: {
    50: '#9ac6e9',
    500: '#66aedf',
    950: '#000000',
  },
}

SCSS

$custom: #66aedf;
$custom-light: #9ac6e9;
$custom-dark: #000000;

JSON

{
  "hex": "#66aedf",
  "rgb": {
    "r": 102,
    "g": 174,
    "b": 223
  },
  "hsl": {
    "h": 204.298,
    "s": 65.405,
    "l": 63.725
  },
  "oklch": {
    "l": 0.72304,
    "c": 0.10185,
    "h": 240
  },
  "luminance": 0.38425
}

Semantic roles & 50–950 ramp

primary

#66AEDF

secondary

#E6CCBB

accent

#6218CD

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0F1316

muted

#7E8284

Preview Lab

Preview with #66AEDF

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

Preview Lab → · Contrast checker → · Palette generator →