#669FCC#669FCC

#669FCC is a light, moderate cyan. Relative luminance 0.320; OKLCH L 68.1% C 0.090 H 243.4°. Best body text is #000000 at 7.40:1 contrast (WCAG AA passes).

Color values

HEX	#669FCC
RGB	rgb(102, 159, 204)
HSL	hsl(206, 50%, 60%)
HSV	hsv(206, 50%, 80%)
CMYK	cmyk(50%, 22.1%, 0%, 20%)
CIE-LAB	lab(63.33, -6.19, -28.80)
CIE-LCH	lch(63.33, 29.46, 257.86°)
OKLab	oklab(68.1% -0.0401 -0.0803)
OKLCH	oklch(68.1% 0.09 243.4)
XYZ	xyz(28.7729, 31.9785, 61.7713)
Luminance	0.3198 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669FCC #CC9366

analogous

#66CCC6 #669FCC #666CCC

triadic

#669FCC #CC669F #9FCC66

tetradic

#669FCC #C666CC #CC9366 #6CCC66

square

#669FCC #C666CC #CC9366 #6CCC66

split-complementary

#669FCC #CC666C #CCC666

monochromatic

#2E618A #3D82B8 #669FCC #94BCDB #C2D9EB

Accessibility & contrast

On white

2.84

#669FCC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.40

#669FCC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669FCC

7.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669FCC	#FFFFFF	#000000	##000000
##669FCC	1.00	2.84	7.40	7.40
#FFFFFF	2.84	1.00	21.00	21.00
#000000	7.40	21.00	1.00	1.00
##000000	7.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8C9FCE

Deuteranopia (green-blind)

#7E95CB

Tritanopia (blue-blind)

#32AAAE

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #669fcc;
/* rgb */ color: rgb(102, 159, 204);
/* oklch */ color: oklch(68.1% 0.090 243.4);

Tailwind

colors: {
  custom: {
    50: '#97bbdb',
    500: '#669fcc',
    950: '#000000',
  },
}

SCSS

$custom: #669fcc;
$custom-light: #97bbdb;
$custom-dark: #000000;

JSON

{
  "hex": "#669fcc",
  "rgb": {
    "r": 102,
    "g": 159,
    "b": 204
  },
  "hsl": {
    "h": 206.471,
    "s": 50,
    "l": 60
  },
  "oklch": {
    "l": 0.68098,
    "c": 0.08976,
    "h": 243.4
  },
  "luminance": 0.31981
}

Semantic roles & 50–950 ramp

primary

#669FCC

secondary

#DBC5B3

accent

#8C4EDA

background

#F9FBFD

surface

#F2F6FB

border

#CCD0D4

text

#0E1115

muted

#7E8083

Preview Lab

Preview with #669FCC

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

Preview Lab → · Contrast checker → · Palette generator →