#66A8EA#66A8EA

#66A8EA is a light, moderate cyan. Relative luminance 0.368; OKLCH L 71.5% C 0.118 H 249.8°. Best body text is #000000 at 8.35:1 contrast (WCAG AA passes).

Color values

HEX	#66A8EA
RGB	rgb(102, 168, 234)
HSL	hsl(210, 76%, 66%)
HSV	hsv(210, 56%, 92%)
CMYK	cmyk(56.4%, 28.2%, 0%, 8.2%)
CIE-LAB	lab(67.10, -2.13, -39.50)
CIE-LCH	lch(67.10, 39.56, 266.92°)
OKLab	oklab(71.49% -0.0409 -0.1111)
OKLCH	oklch(71.49% 0.118 249.8)
XYZ	xyz(34.3281, 36.7676, 83.1138)
Luminance	0.3677 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66A8EA #EAA866

analogous

#66EAEA #66A8EA #6666EA

triadic

#66A8EA #EA66A8 #A8EA66

tetradic

#66A8EA #EA66EA #EAA866 #66EA66

square

#66A8EA #EA66EA #EAA866 #66EA66

split-complementary

#66A8EA #EA6666 #EAEA66

monochromatic

#1A6BBC #3089E3 #66A8EA #9CC7F1 #D2E5F9

Accessibility & contrast

On white

2.51

#66A8EA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.35

#66A8EA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66A8EA

8.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66A8EA	#FFFFFF	#000000	##000000
##66A8EA	1.00	2.51	8.35	8.35
#FFFFFF	2.51	1.00	21.00	21.00
#000000	8.35	21.00	1.00	1.00
##000000	8.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8CABED

Deuteranopia (green-blind)

#7B9EE9

Tritanopia (blue-blind)

#00B7BF

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #66a8ea;
/* rgb */ color: rgb(102, 168, 234);
/* oklch */ color: oklch(71.5% 0.118 249.8);

Tailwind

colors: {
  custom: {
    50: '#9bc1f1',
    500: '#66a8ea',
    950: '#000000',
  },
}

SCSS

$custom: #66a8ea;
$custom-light: #9bc1f1;
$custom-dark: #000000;

JSON

{
  "hex": "#66a8ea",
  "rgb": {
    "r": 102,
    "g": 168,
    "b": 234
  },
  "hsl": {
    "h": 210,
    "s": 75.862,
    "l": 65.882
  },
  "oklch": {
    "l": 0.71485,
    "c": 0.11834,
    "h": 249.8
  },
  "luminance": 0.36771
}

Semantic roles & 50–950 ramp

primary

#66A8EA

secondary

#ECD6C0

accent

#730DD8

background

#FAFBFE

surface

#F3F7FD

border

#CDD0D5

text

#0F1216

muted

#7F8184

Preview Lab

Preview with #66A8EA

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

Preview Lab → · Contrast checker → · Palette generator →