#669FC4#669FC4

#669FC4 is a light, moderate cyan. Relative luminance 0.316; OKLCH L 67.8% C 0.081 H 238.1°. Best body text is #000000 at 7.32:1 contrast (WCAG AA passes).

Color values

HEX	#669FC4
RGB	rgb(102, 159, 196)
HSL	hsl(204, 44%, 58%)
HSV	hsv(204, 48%, 77%)
CMYK	cmyk(48%, 18.9%, 0%, 23.1%)
CIE-LAB	lab(63.01, -8.53, -24.81)
CIE-LCH	lch(63.01, 26.24, 251.03°)
OKLab	oklab(67.75% -0.0429 -0.0689)
OKLCH	oklch(67.75% 0.081 238.1)
XYZ	xyz(27.8379, 31.6045, 56.8472)
Luminance	0.3161 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669FC4 #C48B66

analogous

#66C4BA #669FC4 #6670C4

triadic

#669FC4 #C4669F #9FC466

tetradic

#669FC4 #BA66C4 #C48B66 #70C466

square

#669FC4 #BA66C4 #C48B66 #70C466

split-complementary

#669FC4 #C46670 #C4BA66

monochromatic

#31607F #4282AB #669FC4 #92BBD5 #BED6E6

Accessibility & contrast

On white

2.87

#669FC4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.32

#669FC4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669FC4

7.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669FC4	#FFFFFF	#000000	##000000
##669FC4	1.00	2.87	7.32	7.32
#FFFFFF	2.87	1.00	21.00	21.00
#000000	7.32	21.00	1.00	1.00
##000000	7.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8E9EC6

Deuteranopia (green-blind)

#8194C3

Tritanopia (blue-blind)

#39A8AB

Achromatopsia (no color)

#989898

Design tokens & code

CSS

--color: #669fc4;
/* rgb */ color: rgb(102, 159, 196);
/* oklch */ color: oklch(67.8% 0.081 238.1);

Tailwind

colors: {
  custom: {
    50: '#97bbd6',
    500: '#669fc4',
    950: '#000000',
  },
}

SCSS

$custom: #669fc4;
$custom-light: #97bbd6;
$custom-dark: #000000;

JSON

{
  "hex": "#669fc4",
  "rgb": {
    "r": 102,
    "g": 159,
    "b": 196
  },
  "hsl": {
    "h": 203.617,
    "s": 44.34,
    "l": 58.431
  },
  "oklch": {
    "l": 0.6775,
    "c": 0.08118,
    "h": 238.1
  },
  "luminance": 0.31607
}

Semantic roles & 50–950 ramp

primary

#669FC4

secondary

#D6BFB0

accent

#8654D4

background

#F9FBFD

surface

#F2F6FA

border

#CCD0D3

text

#0E1114

muted

#7E8083

Preview Lab

Preview with #669FC4

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

Preview Lab → · Contrast checker → · Palette generator →