#669FC5#669FC5

#669FC5 is a light, moderate cyan. Relative luminance 0.317; OKLCH L 67.8% C 0.082 H 238.8°. Best body text is #000000 at 7.33:1 contrast (WCAG AA passes).

Color values

HEX	#669FC5
RGB	rgb(102, 159, 197)
HSL	hsl(204, 45%, 59%)
HSV	hsv(204, 48%, 77%)
CMYK	cmyk(48.2%, 19.3%, 0%, 22.7%)
CIE-LAB	lab(63.05, -8.24, -25.31)
CIE-LCH	lch(63.05, 26.62, 251.97°)
OKLab	oklab(67.79% -0.0425 -0.0703)
OKLCH	oklch(67.79% 0.082 238.8)
XYZ	xyz(27.9521, 31.6502, 57.4486)
Luminance	0.3165 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669FC5 #C58C66

analogous

#66C5BB #669FC5 #666FC5

triadic

#669FC5 #C5669F #9FC566

tetradic

#669FC5 #BB66C5 #C58C66 #6FC566

square

#669FC5 #BB66C5 #C58C66 #6FC566

split-complementary

#669FC5 #C5666F #C5BB66

monochromatic

#316080 #4182AC #669FC5 #92BBD6 #BFD7E7

Accessibility & contrast

On white

2.86

#669FC5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.33

#669FC5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669FC5

7.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669FC5	#FFFFFF	#000000	##000000
##669FC5	1.00	2.86	7.33	7.33
#FFFFFF	2.86	1.00	21.00	21.00
#000000	7.33	21.00	1.00	1.00
##000000	7.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8E9EC7

Deuteranopia (green-blind)

#8194C4

Tritanopia (blue-blind)

#39A9AC

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #669fc5;
/* rgb */ color: rgb(102, 159, 197);
/* oklch */ color: oklch(67.8% 0.082 238.8);

Tailwind

colors: {
  custom: {
    50: '#97bbd6',
    500: '#669fc5',
    950: '#000000',
  },
}

SCSS

$custom: #669fc5;
$custom-light: #97bbd6;
$custom-dark: #000000;

JSON

{
  "hex": "#669fc5",
  "rgb": {
    "r": 102,
    "g": 159,
    "b": 197
  },
  "hsl": {
    "h": 204,
    "s": 45.024,
    "l": 58.627
  },
  "oklch": {
    "l": 0.67793,
    "c": 0.08221,
    "h": 238.8
  },
  "luminance": 0.31652
}

Semantic roles & 50–950 ramp

primary

#669FC5

secondary

#D6C0B1

accent

#8753D5

background

#F9FBFD

surface

#F2F6FA

border

#CCD0D3

text

#0E1114

muted

#7E8083

Preview Lab

Preview with #669FC5

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

Preview Lab → · Contrast checker → · Palette generator →