#669BBB#669BBB

#669BBB is a light, moderate cyan. Relative luminance 0.299; OKLCH L 66.5% C 0.074 H 235.9°. Best body text is #000000 at 6.97:1 contrast (WCAG AA passes).

Color values

HEX	#669BBB
RGB	rgb(102, 155, 187)
HSL	hsl(203, 38%, 57%)
HSV	hsv(203, 45%, 73%)
CMYK	cmyk(45.5%, 17.1%, 0%, 26.7%)
CIE-LAB	lab(61.53, -8.90, -22.05)
CIE-LCH	lch(61.53, 23.78, 248.01°)
OKLab	oklab(66.46% -0.0413 -0.0611)
OKLCH	oklch(66.46% 0.074 235.9)
XYZ	xyz(26.1673, 29.8535, 51.3875)
Luminance	0.2985 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669BBB #BB8666

analogous

#66BBB1 #669BBB #6671BB

triadic

#669BBB #BB669B #9BBB66

tetradic

#669BBB #B166BB #BB8666 #71BB66

square

#669BBB #B166BB #BB8666 #71BB66

split-complementary

#669BBB #BB6671 #BBB166

monochromatic

#335B73 #467D9E #669BBB #90B7CE #BBD2E1

Accessibility & contrast

On white

3.01

#669BBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.97

#669BBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #669BBB

6.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669BBB	#FFFFFF	#000000	##000000
##669BBB	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)

#8C9ABD

Deuteranopia (green-blind)

#8091BB

Tritanopia (blue-blind)

#41A3A5

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #669bbb;
/* rgb */ color: rgb(102, 155, 187);
/* oklch */ color: oklch(66.5% 0.074 235.9);

Tailwind

colors: {
  custom: {
    50: '#96b8cf',
    500: '#669bbb',
    950: '#000000',
  },
}

SCSS

$custom: #669bbb;
$custom-light: #96b8cf;
$custom-dark: #000000;

JSON

{
  "hex": "#669bbb",
  "rgb": {
    "r": 102,
    "g": 155,
    "b": 187
  },
  "hsl": {
    "h": 202.588,
    "s": 38.462,
    "l": 56.667
  },
  "oklch": {
    "l": 0.66461,
    "c": 0.07371,
    "h": 235.9
  },
  "luminance": 0.29855
}

Semantic roles & 50–950 ramp

primary

#669BBB

secondary

#D0BAAD

accent

#8559CE

background

#F9FBFC

surface

#F2F6F9

border

#CCD0D2

text

#0E1113

muted

#7E8082

Preview Lab

Preview with #669BBB

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

Preview Lab → · Contrast checker → · Palette generator →