#669BC4#669BC4

#669BC4 is a light, moderate cyan. Relative luminance 0.303; OKLCH L 66.8% C 0.083 H 242.7°. Best body text is #000000 at 7.05:1 contrast (WCAG AA passes).

Color values

HEX	#669BC4
RGB	rgb(102, 155, 196)
HSL	hsl(206, 44%, 58%)
HSV	hsv(206, 48%, 77%)
CMYK	cmyk(48%, 20.9%, 0%, 23.1%)
CIE-LAB	lab(61.87, -6.31, -26.57)
CIE-LCH	lch(61.87, 27.31, 256.64°)
OKLab	oklab(66.85% -0.0381 -0.0739)
OKLCH	oklch(66.85% 0.083 242.7)
XYZ	xyz(27.1612, 30.2510, 56.6216)
Luminance	0.3025 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669BC4 #C48F66

analogous

#66C4BE #669BC4 #666CC4

triadic

#669BC4 #C4669B #9BC466

tetradic

#669BC4 #BE66C4 #C48F66 #6CC466

square

#669BC4 #BE66C4 #C48F66 #6CC466

split-complementary

#669BC4 #C4666C #C4BE66

monochromatic

#315D7F #427DAB #669BC4 #92B8D5 #BED5E6

Accessibility & contrast

On white

2.98

#669BC4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.05

#669BC4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669BC4

7.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669BC4	#FFFFFF	#000000	##000000
##669BC4	1.00	2.98	7.05	7.05
#FFFFFF	2.98	1.00	21.00	21.00
#000000	7.05	21.00	1.00	1.00
##000000	7.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A9BC6

Deuteranopia (green-blind)

#7D91C3

Tritanopia (blue-blind)

#3AA5A9

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #669bc4;
/* rgb */ color: rgb(102, 155, 196);
/* oklch */ color: oklch(66.8% 0.083 242.7);

Tailwind

colors: {
  custom: {
    50: '#97b8d6',
    500: '#669bc4',
    950: '#000000',
  },
}

SCSS

$custom: #669bc4;
$custom-light: #97b8d6;
$custom-dark: #000000;

JSON

{
  "hex": "#669bc4",
  "rgb": {
    "r": 102,
    "g": 155,
    "b": 196
  },
  "hsl": {
    "h": 206.17,
    "s": 44.34,
    "l": 58.431
  },
  "oklch": {
    "l": 0.66845,
    "c": 0.08317,
    "h": 242.7
  },
  "luminance": 0.30253
}

Semantic roles & 50–950 ramp

primary

#669BC4

secondary

#D6C1B0

accent

#8C54D4

background

#F9FBFD

surface

#F2F6FA

border

#CCD0D3

text

#0E1114

muted

#7E8083

Preview Lab

Preview with #669BC4

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

Preview Lab → · Contrast checker → · Palette generator →