#669CAB#669CAB

#669CAB is a light, moderate cyan. Relative luminance 0.295; OKLCH L 66.1% C 0.061 H 217.2°. Best body text is #000000 at 6.91:1 contrast (WCAG AA passes).

Color values

HEX	#669CAB
RGB	rgb(102, 156, 171)
HSL	hsl(193, 29%, 54%)
HSV	hsv(193, 40%, 67%)
CMYK	cmyk(40.4%, 8.8%, 0%, 32.9%)
CIE-LAB	lab(61.26, -13.86, -13.44)
CIE-LCH	lch(61.26, 19.31, 224.13°)
OKLab	oklab(66.06% -0.0487 -0.0369)
OKLCH	oklch(66.06% 0.061 217.2)
XYZ	xyz(24.7161, 29.5404, 42.9196)
Luminance	0.2954 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669CAB #AB7566

analogous

#66AB97 #669CAB #6679AB

triadic

#669CAB #AB669C #9CAB66

tetradic

#669CAB #9766AB #AB7566 #79AB66

square

#669CAB #9766AB #AB7566 #79AB66

split-complementary

#669CAB #AB6679 #AB9766

monochromatic

#355861 #4B7B89 #669CAB #8EB6C1 #B5CFD6

Accessibility & contrast

On white

3.04

#669CAB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.91

#669CAB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #669CAB

6.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669CAB	#FFFFFF	#000000	##000000
##669CAB	1.00	3.04	6.91	6.91
#FFFFFF	3.04	1.00	21.00	21.00
#000000	6.91	21.00	1.00	1.00
##000000	6.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9299AC

Deuteranopia (green-blind)

#8790AB

Tritanopia (blue-blind)

#4AA2A1

Achromatopsia (no color)

#949494

Design tokens & code

CSS

--color: #669cab;
/* rgb */ color: rgb(102, 156, 171);
/* oklch */ color: oklch(66.1% 0.061 217.2);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#669cab",
  "rgb": {
    "r": 102,
    "g": 156,
    "b": 171
  },
  "hsl": {
    "h": 193.043,
    "s": 29.114,
    "l": 53.529
  },
  "oklch": {
    "l": 0.66059,
    "c": 0.0611,
    "h": 217.2
  },
  "luminance": 0.29542
}

Semantic roles & 50–950 ramp

primary

#669CAB

secondary

#C5AEA8

accent

#7862C5

background

#F9FBFC

surface

#F2F6F8

border

#CCD0D1

text

#0D1112

muted

#7E8081

Preview Lab

Preview with #669CAB

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

Preview Lab → · Contrast checker → · Palette generator →