#669CAA#669CAA

#669CAA is a light, moderate cyan. Relative luminance 0.295; OKLCH L 66.0% C 0.061 H 215.9°. Best body text is #000000 at 6.90:1 contrast (WCAG AA passes).

Color values

HEX	#669CAA
RGB	rgb(102, 156, 170)
HSL	hsl(192, 29%, 53%)
HSV	hsv(192, 40%, 67%)
CMYK	cmyk(40%, 8.2%, 0%, 33.3%)
CIE-LAB	lab(61.22, -14.12, -12.93)
CIE-LCH	lch(61.22, 19.15, 222.47°)
OKLab	oklab(66.02% -0.0491 -0.0355)
OKLCH	oklch(66.02% 0.061 215.9)
XYZ	xyz(24.6211, 29.5024, 42.4196)
Luminance	0.2950 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669CAA #AA7466

analogous

#66AA96 #669CAA #667AAA

triadic

#669CAA #AA669C #9CAA66

tetradic

#669CAA #9666AA #AA7466 #7AAA66

square

#669CAA #9666AA #AA7466 #7AAA66

split-complementary

#669CAA #AA667A #AA9666

monochromatic

#355760 #4B7B88 #669CAA #8DB5C0 #B5CFD6

Accessibility & contrast

On white

3.04

#669CAA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.90

#669CAA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #669CAA

6.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669CAA	#FFFFFF	#000000	##000000
##669CAA	1.00	3.04	6.90	6.90
#FFFFFF	3.04	1.00	21.00	21.00
#000000	6.90	21.00	1.00	1.00
##000000	6.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9299AB

Deuteranopia (green-blind)

#8790AA

Tritanopia (blue-blind)

#4BA1A0

Achromatopsia (no color)

#949494

Design tokens & code

CSS

--color: #669caa;
/* rgb */ color: rgb(102, 156, 170);
/* oklch */ color: oklch(66.0% 0.061 215.9);

Tailwind

colors: {
  custom: {
    50: '#95b9c3',
    500: '#669caa',
    950: '#000000',
  },
}

SCSS

$custom: #669caa;
$custom-light: #95b9c3;
$custom-dark: #000000;

JSON

{
  "hex": "#669caa",
  "rgb": {
    "r": 102,
    "g": 156,
    "b": 170
  },
  "hsl": {
    "h": 192.353,
    "s": 28.571,
    "l": 53.333
  },
  "oklch": {
    "l": 0.66021,
    "c": 0.06058,
    "h": 215.9
  },
  "luminance": 0.29504
}

Semantic roles & 50–950 ramp

primary

#669CAA

secondary

#C5ADA7

accent

#7763C5

background

#F9FBFB

surface

#F2F6F7

border

#CCD0D0

text

#0D1112

muted

#7E8081

Preview Lab

Preview with #669CAA

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

Preview Lab → · Contrast checker → · Palette generator →