#669CAC#669CAC

#669CAC is a light, moderate cyan. Relative luminance 0.296; OKLCH L 66.1% C 0.062 H 218.5°. Best body text is #000000 at 6.92:1 contrast (WCAG AA passes).

Color values

HEX	#669CAC
RGB	rgb(102, 156, 172)
HSL	hsl(194, 30%, 54%)
HSV	hsv(194, 41%, 67%)
CMYK	cmyk(40.7%, 9.3%, 0%, 32.5%)
CIE-LAB	lab(61.29, -13.59, -13.96)
CIE-LCH	lch(61.29, 19.48, 225.77°)
OKLab	oklab(66.1% -0.0483 -0.0384)
OKLCH	oklch(66.1% 0.062 218.5)
XYZ	xyz(24.8117, 29.5786, 43.4235)
Luminance	0.2958 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669CAC #AC7666

analogous

#66AC99 #669CAC #6679AC

triadic

#669CAC #AC669C #9CAC66

tetradic

#669CAC #9966AC #AC7666 #79AC66

square

#669CAC #9966AC #AC7666 #79AC66

split-complementary

#669CAC #AC6679 #AC9966

monochromatic

#355862 #4B7C8A #669CAC #8EB6C2 #B5CFD7

Accessibility & contrast

On white

3.04

#669CAC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.92

#669CAC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #669CAC

6.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669CAC	#FFFFFF	#000000	##000000
##669CAC	1.00	3.04	6.92	6.92
#FFFFFF	3.04	1.00	21.00	21.00
#000000	6.92	21.00	1.00	1.00
##000000	6.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9299AD

Deuteranopia (green-blind)

#8790AC

Tritanopia (blue-blind)

#4AA2A1

Achromatopsia (no color)

#949494

Design tokens & code

CSS

--color: #669cac;
/* rgb */ color: rgb(102, 156, 172);
/* oklch */ color: oklch(66.1% 0.062 218.5);

Tailwind

colors: {
  custom: {
    50: '#95b9c4',
    500: '#669cac',
    950: '#000000',
  },
}

SCSS

$custom: #669cac;
$custom-light: #95b9c4;
$custom-dark: #000000;

JSON

{
  "hex": "#669cac",
  "rgb": {
    "r": 102,
    "g": 156,
    "b": 172
  },
  "hsl": {
    "h": 193.714,
    "s": 29.661,
    "l": 53.725
  },
  "oklch": {
    "l": 0.66096,
    "c": 0.06166,
    "h": 218.5
  },
  "luminance": 0.2958
}

Semantic roles & 50–950 ramp

primary

#669CAC

secondary

#C6AFA8

accent

#7962C6

background

#F9FBFC

surface

#F2F6F8

border

#CCD0D1

text

#0D1112

muted

#7E8081

Preview Lab

Preview with #669CAC

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

Preview Lab → · Contrast checker → · Palette generator →