#669CF9#669CF9

#669CF9 is a light, vivid blue. Relative luminance 0.334; OKLCH L 69.7% C 0.149 H 260.6°. Best body text is #000000 at 7.69:1 contrast (WCAG AA passes).

Color values

HEX	#669CF9
RGB	rgb(102, 156, 249)
HSL	hsl(218, 92%, 69%)
HSV	hsv(218, 59%, 98%)
CMYK	cmyk(59%, 37.3%, 0%, 2.4%)
CIE-LAB	lab(64.51, 9.49, -51.78)
CIE-LCH	lch(64.51, 52.65, 280.38°)
OKLab	oklab(69.69% -0.0242 -0.1469)
OKLCH	oklch(69.69% 0.149 260.6)
XYZ	xyz(34.4609, 33.4383, 94.2424)
Luminance	0.3344 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669CF9 #F9C366

analogous

#66E6F9 #669CF9 #7A66F9

triadic

#669CF9 #F9669C #9CF966

tetradic

#669CF9 #F966E6 #F9C366 #66F97A

square

#669CF9 #F966E6 #F9C366 #66F97A

split-complementary

#669CF9 #F97A66 #E6F966

monochromatic

#0956DC #2B76F7 #669CF9 #A1C2FB #DCE8FE

Accessibility & contrast

On white

2.73

#669CF9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.69

#669CF9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669CF9

7.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669CF9	#FFFFFF	#000000	##000000
##669CF9	1.00	2.73	7.69	7.69
#FFFFFF	2.73	1.00	21.00	21.00
#000000	7.69	21.00	1.00	1.00
##000000	7.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#74A4FD

Deuteranopia (green-blind)

#6196F7

Tritanopia (blue-blind)

#00B1BF

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #669cf9;
/* rgb */ color: rgb(102, 156, 249);
/* oklch */ color: oklch(69.7% 0.149 260.6);

Tailwind

colors: {
  custom: {
    50: '#9db8fc',
    500: '#669cf9',
    950: '#000000',
  },
}

SCSS

$custom: #669cf9;
$custom-light: #9db8fc;
$custom-dark: #000000;

JSON

{
  "hex": "#669cf9",
  "rgb": {
    "r": 102,
    "g": 156,
    "b": 249
  },
  "hsl": {
    "h": 217.959,
    "s": 92.453,
    "l": 68.824
  },
  "oklch": {
    "l": 0.69692,
    "c": 0.14889,
    "h": 260.6
  },
  "luminance": 0.33441
}

Semantic roles & 50–950 ramp

primary

#669CF9

secondary

#F3E3C8

accent

#9100E6

background

#FAFBFF

surface

#F4F6FF

border

#CED0D7

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #669CF9

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

Preview Lab → · Contrast checker → · Palette generator →