#669BBC#669BBC

#669BBC is a light, moderate cyan. Relative luminance 0.299; OKLCH L 66.5% C 0.075 H 236.8°. Best body text is #000000 at 6.98:1 contrast (WCAG AA passes).

Color values

HEX	#669BBC
RGB	rgb(102, 155, 188)
HSL	hsl(203, 39%, 57%)
HSV	hsv(203, 46%, 74%)
CMYK	cmyk(45.7%, 17.6%, 0%, 26.3%)
CIE-LAB	lab(61.56, -8.62, -22.55)
CIE-LCH	lch(61.56, 24.14, 249.09°)
OKLab	oklab(66.5% -0.0409 -0.0625)
OKLCH	oklch(66.5% 0.075 236.8)
XYZ	xyz(26.2748, 29.8965, 51.9532)
Luminance	0.2990 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669BBC #BC8766

analogous

#66BCB2 #669BBC #6670BC

triadic

#669BBC #BC669B #9BBC66

tetradic

#669BBC #B266BC #BC8766 #70BC66

square

#669BBC #B266BC #BC8766 #70BC66

split-complementary

#669BBC #BC6670 #BCB266

monochromatic

#335B75 #467D9F #669BBC #91B7CF #BBD3E1

Accessibility & contrast

On white

3.01

#669BBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.98

#669BBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #669BBC

6.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669BBC	#FFFFFF	#000000	##000000
##669BBC	1.00	3.01	6.98	6.98
#FFFFFF	3.01	1.00	21.00	21.00
#000000	6.98	21.00	1.00	1.00
##000000	6.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8C9ABE

Deuteranopia (green-blind)

#8091BB

Tritanopia (blue-blind)

#40A4A6

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #669bbc;
/* rgb */ color: rgb(102, 155, 188);
/* oklch */ color: oklch(66.5% 0.075 236.8);

Tailwind

colors: {
  custom: {
    50: '#96b8d0',
    500: '#669bbc',
    950: '#000000',
  },
}

SCSS

$custom: #669bbc;
$custom-light: #96b8d0;
$custom-dark: #000000;

JSON

{
  "hex": "#669bbc",
  "rgb": {
    "r": 102,
    "g": 155,
    "b": 188
  },
  "hsl": {
    "h": 203.023,
    "s": 39.091,
    "l": 56.863
  },
  "oklch": {
    "l": 0.66503,
    "c": 0.0747,
    "h": 236.8
  },
  "luminance": 0.29898
}

Semantic roles & 50–950 ramp

primary

#669BBC

secondary

#D0BBAD

accent

#8659CF

background

#F9FBFC

surface

#F2F6F9

border

#CCD0D2

text

#0E1114

muted

#7E8082

Preview Lab

Preview with #669BBC

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

Preview Lab → · Contrast checker → · Palette generator →