#669CD3#669CD3

#669CD3 is a light, moderate cyan. Relative luminance 0.313; OKLCH L 67.7% C 0.100 H 249.9°. Best body text is #000000 at 7.26:1 contrast (WCAG AA passes).

Color values

HEX	#669CD3
RGB	rgb(102, 156, 211)
HSL	hsl(210, 55%, 61%)
HSV	hsv(210, 52%, 83%)
CMYK	cmyk(51.7%, 26.1%, 0%, 17.3%)
CIE-LAB	lab(62.76, -2.42, -33.57)
CIE-LCH	lch(62.76, 33.66, 265.88°)
OKLab	oklab(67.75% -0.0343 -0.094)
OKLCH	oklch(67.75% 0.1 249.9)
XYZ	xyz(29.1217, 31.3026, 66.1228)
Luminance	0.3130 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669CD3 #D39D66

analogous

#66D3D3 #669CD3 #6766D3

triadic

#669CD3 #D3669C #9CD366

tetradic

#669CD3 #D366D3 #D39D66 #66D367

square

#669CD3 #D366D3 #D39D66 #66D367

split-complementary

#669CD3 #D36766 #D3D366

monochromatic

#2B5F94 #387DC4 #669CD3 #96BBE1 #C5DAEE

Accessibility & contrast

On white

2.89

#669CD3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.26

#669CD3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669CD3

7.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669CD3	#FFFFFF	#000000	##000000
##669CD3	1.00	2.89	7.26	7.26
#FFFFFF	2.89	1.00	21.00	21.00
#000000	7.26	21.00	1.00	1.00
##000000	7.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#869ED5

Deuteranopia (green-blind)

#7893D2

Tritanopia (blue-blind)

#2CA9AF

Achromatopsia (no color)

#989898

Design tokens & code

CSS

--color: #669cd3;
/* rgb */ color: rgb(102, 156, 211);
/* oklch */ color: oklch(67.7% 0.100 249.9);

Tailwind

colors: {
  custom: {
    50: '#98b9e0',
    500: '#669cd3',
    950: '#000000',
  },
}

SCSS

$custom: #669cd3;
$custom-light: #98b9e0;
$custom-dark: #000000;

JSON

{
  "hex": "#669cd3",
  "rgb": {
    "r": 102,
    "g": 156,
    "b": 211
  },
  "hsl": {
    "h": 210.275,
    "s": 55.33,
    "l": 61.373
  },
  "oklch": {
    "l": 0.67749,
    "c": 0.10007,
    "h": 249.9
  },
  "luminance": 0.31305
}

Semantic roles & 50–950 ramp

primary

#669CD3

secondary

#DFCBB6

accent

#7323C3

background

#F9FBFD

surface

#F2F6FB

border

#CCD0D4

text

#0E1115

muted

#7E8083

Preview Lab

Preview with #669CD3

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

Preview Lab → · Contrast checker → · Palette generator →