#66AEEE#66AEEE

#66AEEE is a light, moderate cyan. Relative luminance 0.393; OKLCH L 73.0% C 0.118 H 247.1°. Best body text is #000000 at 8.85:1 contrast (WCAG AA passes).

Color values

HEX	#66AEEE
RGB	rgb(102, 174, 238)
HSL	hsl(208, 80%, 67%)
HSV	hsv(208, 57%, 93%)
CMYK	cmyk(57.1%, 26.9%, 0%, 6.7%)
CIE-LAB	lab(68.94, -4.23, -38.81)
CIE-LCH	lch(68.94, 39.04, 263.78°)
OKLab	oklab(72.99% -0.0462 -0.109)
OKLCH	oklch(72.99% 0.118 247.1)
XYZ	xyz(36.0426, 39.2667, 86.5522)
Luminance	0.3927 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66AEEE #EEA666

analogous

#66EEEA #66AEEE #666AEE

triadic

#66AEEE #EE66AE #AEEE66

tetradic

#66AEEE #EA66EE #EEA666 #6AEE66

square

#66AEEE #EA66EE #EEA666 #6AEE66

split-complementary

#66AEEE #EE666A #EEEA66

monochromatic

#1672C4 #2F91E8 #66AEEE #9DCBF4 #D4E8FA

Accessibility & contrast

On white

2.37

#66AEEE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.85

#66AEEE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66AEEE

8.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66AEEE	#FFFFFF	#000000	##000000
##66AEEE	1.00	2.37	8.85	8.85
#FFFFFF	2.37	1.00	21.00	21.00
#000000	8.85	21.00	1.00	1.00
##000000	8.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#93B0F1

Deuteranopia (green-blind)

#81A2ED

Tritanopia (blue-blind)

#00BDC4

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #66aeee;
/* rgb */ color: rgb(102, 174, 238);
/* oklch */ color: oklch(73.0% 0.118 247.1);

Tailwind

colors: {
  custom: {
    50: '#9bc6f3',
    500: '#66aeee',
    950: '#000000',
  },
}

SCSS

$custom: #66aeee;
$custom-light: #9bc6f3;
$custom-dark: #000000;

JSON

{
  "hex": "#66aeee",
  "rgb": {
    "r": 102,
    "g": 174,
    "b": 238
  },
  "hsl": {
    "h": 208.235,
    "s": 80,
    "l": 66.667
  },
  "oklch": {
    "l": 0.72991,
    "c": 0.11841,
    "h": 247.1
  },
  "luminance": 0.3927
}

Semantic roles & 50–950 ramp

primary

#66AEEE

secondary

#EED7C2

accent

#6D09DC

background

#FAFCFE

surface

#F4F8FD

border

#CED1D5

text

#0F1217

muted

#7F8185

Preview Lab

Preview with #66AEEE

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

Preview Lab → · Contrast checker → · Palette generator →