#669CC0#669CC0

#669CC0 is a light, moderate cyan. Relative luminance 0.304; OKLCH L 66.9% C 0.078 H 238.7°. Best body text is #000000 at 7.08:1 contrast (WCAG AA passes).

Color values

HEX	#669CC0
RGB	rgb(102, 156, 192)
HSL	hsl(204, 42%, 58%)
HSV	hsv(204, 47%, 75%)
CMYK	cmyk(46.9%, 18.7%, 0%, 24.7%)
CIE-LAB	lab(62.00, -8.03, -24.13)
CIE-LCH	lch(62.00, 25.43, 251.60°)
OKLab	oklab(66.9% -0.0407 -0.067)
OKLCH	oklch(66.9% 0.078 238.7)
XYZ	xyz(26.8790, 30.4055, 54.3114)
Luminance	0.3041 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669CC0 #C08A66

analogous

#66C0B7 #669CC0 #666FC0

triadic

#669CC0 #C0669C #9CC066

tetradic

#669CC0 #B766C0 #C08A66 #6FC066

square

#669CC0 #B766C0 #C08A66 #6FC066

split-complementary

#669CC0 #C0666F #C0B766

monochromatic

#325D7A #447EA5 #669CC0 #91B8D2 #BDD4E4

Accessibility & contrast

On white

2.97

#669CC0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.08

#669CC0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669CC0

7.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669CC0	#FFFFFF	#000000	##000000
##669CC0	1.00	2.97	7.08	7.08
#FFFFFF	2.97	1.00	21.00	21.00
#000000	7.08	21.00	1.00	1.00
##000000	7.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8C9BC2

Deuteranopia (green-blind)

#8092BF

Tritanopia (blue-blind)

#3DA5A8

Achromatopsia (no color)

#969696

Design tokens & code

CSS

--color: #669cc0;
/* rgb */ color: rgb(102, 156, 192);
/* oklch */ color: oklch(66.9% 0.078 238.7);

Tailwind

colors: {
  custom: {
    50: '#96b9d3',
    500: '#669cc0',
    950: '#000000',
  },
}

SCSS

$custom: #669cc0;
$custom-light: #96b9d3;
$custom-dark: #000000;

JSON

{
  "hex": "#669cc0",
  "rgb": {
    "r": 102,
    "g": 156,
    "b": 192
  },
  "hsl": {
    "h": 204,
    "s": 41.667,
    "l": 57.647
  },
  "oklch": {
    "l": 0.66899,
    "c": 0.07837,
    "h": 238.7
  },
  "luminance": 0.30407
}

Semantic roles & 50–950 ramp

primary

#669CC0

secondary

#D3BDAF

accent

#8856D1

background

#F9FBFC

surface

#F2F6F9

border

#CCD0D2

text

#0E1114

muted

#7E8082

Preview Lab

Preview with #669CC0

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

Preview Lab → · Contrast checker → · Palette generator →