#669CF5#669CF5

#669CF5 is a light, vivid blue. Relative luminance 0.332; OKLCH L 69.5% C 0.144 H 259.9°. Best body text is #000000 at 7.64:1 contrast (WCAG AA passes).

Color values

HEX	#669CF5
RGB	rgb(102, 156, 245)
HSL	hsl(217, 88%, 68%)
HSV	hsv(217, 58%, 96%)
CMYK	cmyk(58.4%, 36.3%, 0%, 3.9%)
CIE-LAB	lab(64.32, 8.20, -49.91)
CIE-LCH	lch(64.32, 50.58, 279.33°)
OKLab	oklab(69.47% -0.0251 -0.1414)
OKLCH	oklch(69.47% 0.144 259.9)
XYZ	xyz(33.8436, 33.1914, 90.9916)
Luminance	0.3319 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669CF5 #F5BF66

analogous

#66E3F5 #669CF5 #7766F5

triadic

#669CF5 #F5669C #9CF566

tetradic

#669CF5 #F566E3 #F5BF66 #66F577

square

#669CF5 #F566E3 #F5BF66 #66F577

split-complementary

#669CF5 #F57766 #E3F566

monochromatic

#0E58D3 #2D77F1 #669CF5 #9FC1F9 #D9E6FD

Accessibility & contrast

On white

2.75

#669CF5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.64

#669CF5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669CF5

7.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669CF5	#FFFFFF	#000000	##000000
##669CF5	1.00	2.75	7.64	7.64
#FFFFFF	2.75	1.00	21.00	21.00
#000000	7.64	21.00	1.00	1.00
##000000	7.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#77A3F9

Deuteranopia (green-blind)

#6496F3

Tritanopia (blue-blind)

#00B0BD

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #669cf5;
/* rgb */ color: rgb(102, 156, 245);
/* oklch */ color: oklch(69.5% 0.144 259.9);

Tailwind

colors: {
  custom: {
    50: '#9cb8f9',
    500: '#669cf5',
    950: '#000000',
  },
}

SCSS

$custom: #669cf5;
$custom-light: #9cb8f9;
$custom-dark: #000000;

JSON

{
  "hex": "#669cf5",
  "rgb": {
    "r": 102,
    "g": 156,
    "b": 245
  },
  "hsl": {
    "h": 217.343,
    "s": 87.73,
    "l": 68.039
  },
  "oklch": {
    "l": 0.69473,
    "c": 0.14365,
    "h": 259.9
  },
  "luminance": 0.33194
}

Semantic roles & 50–950 ramp

primary

#669CF5

secondary

#F1E1C6

accent

#8F01E4

background

#FAFBFF

surface

#F4F6FF

border

#CED0D7

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #669CF5

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

Preview Lab → · Contrast checker → · Palette generator →