#669DD4#669DD4

#669DD4 is a light, moderate cyan. Relative luminance 0.317; OKLCH L 68.0% C 0.101 H 249.5°. Best body text is #000000 at 7.34:1 contrast (WCAG AA passes).

Color values

HEX	#669DD4
RGB	rgb(102, 157, 212)
HSL	hsl(210, 56%, 62%)
HSV	hsv(210, 52%, 83%)
CMYK	cmyk(51.9%, 25.9%, 0%, 16.9%)
CIE-LAB	lab(63.09, -2.68, -33.62)
CIE-LCH	lch(63.09, 33.73, 265.45°)
OKLab	oklab(68.02% -0.0352 -0.0941)
OKLCH	oklch(68.02% 0.101 249.5)
XYZ	xyz(29.4160, 31.6899, 66.8412)
Luminance	0.3169 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669DD4 #D49D66

analogous

#66D4D4 #669DD4 #6666D4

triadic

#669DD4 #D4669D #9DD466

tetradic

#669DD4 #D466D4 #D49D66 #66D466

square

#669DD4 #D466D4 #D49D66 #66D466

split-complementary

#669DD4 #D46666 #D4D466

monochromatic

#2A6096 #377EC5 #669DD4 #96BCE1 #C6DAEF

Accessibility & contrast

On white

2.86

#669DD4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.34

#669DD4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669DD4

7.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669DD4	#FFFFFF	#000000	##000000
##669DD4	1.00	2.86	7.34	7.34
#FFFFFF	2.86	1.00	21.00	21.00
#000000	7.34	21.00	1.00	1.00
##000000	7.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#869FD6

Deuteranopia (green-blind)

#7894D3

Tritanopia (blue-blind)

#2AAAB0

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #669dd4;
/* rgb */ color: rgb(102, 157, 212);
/* oklch */ color: oklch(68.0% 0.101 249.5);

Tailwind

colors: {
  custom: {
    50: '#98b9e1',
    500: '#669dd4',
    950: '#000000',
  },
}

SCSS

$custom: #669dd4;
$custom-light: #98b9e1;
$custom-dark: #000000;

JSON

{
  "hex": "#669dd4",
  "rgb": {
    "r": 102,
    "g": 157,
    "b": 212
  },
  "hsl": {
    "h": 210,
    "s": 56.122,
    "l": 61.569
  },
  "oklch": {
    "l": 0.68018,
    "c": 0.10051,
    "h": 249.5
  },
  "luminance": 0.31692
}

Semantic roles & 50–950 ramp

primary

#669DD4

secondary

#DFCBB6

accent

#7322C4

background

#F9FBFD

surface

#F2F6FB

border

#CCD0D4

text

#0E1115

muted

#7E8083

Preview Lab

Preview with #669DD4

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

Preview Lab → · Contrast checker → · Palette generator →