#669CF4#669CF4

#669CF4 is a light, vivid blue. Relative luminance 0.331; OKLCH L 69.4% C 0.142 H 259.7°. Best body text is #000000 at 7.63:1 contrast (WCAG AA passes).

Color values

HEX	#669CF4
RGB	rgb(102, 156, 244)
HSL	hsl(217, 87%, 68%)
HSV	hsv(217, 58%, 96%)
CMYK	cmyk(58.2%, 36.1%, 0%, 4.3%)
CIE-LAB	lab(64.27, 7.88, -49.44)
CIE-LCH	lch(64.27, 50.06, 279.06°)
OKLab	oklab(69.42% -0.0254 -0.14)
OKLCH	oklch(69.42% 0.142 259.7)
XYZ	xyz(33.6914, 33.1305, 90.1898)
Luminance	0.3313 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669CF4 #F4BE66

analogous

#66E3F4 #669CF4 #7766F4

triadic

#669CF4 #F4669C #9CF466

tetradic

#669CF4 #F466E3 #F4BE66 #66F477

square

#669CF4 #F466E3 #F4BE66 #66F477

split-complementary

#669CF4 #F47766 #E3F466

monochromatic

#0F59D1 #2D77F0 #669CF4 #9FC1F8 #D8E6FC

Accessibility & contrast

On white

2.75

#669CF4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.63

#669CF4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669CF4

7.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669CF4	#FFFFFF	#000000	##000000
##669CF4	1.00	2.75	7.63	7.63
#FFFFFF	2.75	1.00	21.00	21.00
#000000	7.63	21.00	1.00	1.00
##000000	7.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#77A3F8

Deuteranopia (green-blind)

#6496F2

Tritanopia (blue-blind)

#00B0BC

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #669cf4;
/* rgb */ color: rgb(102, 156, 244);
/* oklch */ color: oklch(69.4% 0.142 259.7);

Tailwind

colors: {
  custom: {
    50: '#9cb8f8',
    500: '#669cf4',
    950: '#000000',
  },
}

SCSS

$custom: #669cf4;
$custom-light: #9cb8f8;
$custom-dark: #000000;

JSON

{
  "hex": "#669cf4",
  "rgb": {
    "r": 102,
    "g": 156,
    "b": 244
  },
  "hsl": {
    "h": 217.183,
    "s": 86.585,
    "l": 67.843
  },
  "oklch": {
    "l": 0.69419,
    "c": 0.14233,
    "h": 259.7
  },
  "luminance": 0.33133
}

Semantic roles & 50–950 ramp

primary

#669CF4

secondary

#F1E0C5

accent

#8E02E3

background

#FAFBFF

surface

#F4F6FF

border

#CED0D7

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #669CF4

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

Preview Lab → · Contrast checker → · Palette generator →