#669CB3#669CB3

#669CB3 is a light, moderate cyan. Relative luminance 0.299; OKLCH L 66.4% C 0.066 H 226.7°. Best body text is #000000 at 6.97:1 contrast (WCAG AA passes).

Color values

HEX	#669CB3
RGB	rgb(102, 156, 179)
HSL	hsl(198, 34%, 55%)
HSV	hsv(198, 43%, 70%)
CMYK	cmyk(43%, 12.8%, 0%, 29.8%)
CIE-LAB	lab(61.53, -11.69, -17.54)
CIE-LCH	lch(61.53, 21.08, 236.33°)
OKLab	oklab(66.37% -0.0455 -0.0484)
OKLCH	oklch(66.37% 0.066 226.7)
XYZ	xyz(25.5018, 29.8546, 47.0578)
Luminance	0.2986 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669CB3 #B37D66

analogous

#66B3A3 #669CB3 #6676B3

triadic

#669CB3 #B3669C #9CB366

tetradic

#669CB3 #A366B3 #B37D66 #76B366

square

#669CB3 #A366B3 #B37D66 #76B366

split-complementary

#669CB3 #B36676 #B3A366

monochromatic

#355A6A #497D93 #669CB3 #8FB6C7 #B8D1DC

Accessibility & contrast

On white

3.01

#669CB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.97

#669CB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #669CB3

6.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669CB3	#FFFFFF	#000000	##000000
##669CB3	1.00	3.01	6.97	6.97
#FFFFFF	3.01	1.00	21.00	21.00
#000000	6.97	21.00	1.00	1.00
##000000	6.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#909AB4

Deuteranopia (green-blind)

#8491B3

Tritanopia (blue-blind)

#46A3A3

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #669cb3;
/* rgb */ color: rgb(102, 156, 179);
/* oklch */ color: oklch(66.4% 0.066 226.7);

Tailwind

colors: {
  custom: {
    50: '#95b9c9',
    500: '#669cb3',
    950: '#000000',
  },
}

SCSS

$custom: #669cb3;
$custom-light: #95b9c9;
$custom-dark: #000000;

JSON

{
  "hex": "#669cb3",
  "rgb": {
    "r": 102,
    "g": 156,
    "b": 179
  },
  "hsl": {
    "h": 197.922,
    "s": 33.624,
    "l": 55.098
  },
  "oklch": {
    "l": 0.66366,
    "c": 0.06643,
    "h": 226.7
  },
  "luminance": 0.29856
}

Semantic roles & 50–950 ramp

primary

#669CB3

secondary

#CBB4AA

accent

#7E5ECA

background

#F9FBFC

surface

#F2F6F8

border

#CCD0D1

text

#0E1113

muted

#7E8082

Preview Lab

Preview with #669CB3

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

Preview Lab → · Contrast checker → · Palette generator →