#669BF9#669BF9

#669BF9 is a light, vivid blue. Relative luminance 0.331; OKLCH L 69.5% C 0.150 H 261.1°. Best body text is #000000 at 7.62:1 contrast (WCAG AA passes).

Color values

HEX	#669BF9
RGB	rgb(102, 155, 249)
HSL	hsl(218, 92%, 69%)
HSV	hsv(218, 59%, 98%)
CMYK	cmyk(59%, 37.8%, 0%, 2.4%)
CIE-LAB	lab(64.25, 10.07, -52.21)
CIE-LCH	lch(64.25, 53.17, 280.92°)
OKLab	oklab(69.48% -0.0232 -0.1482)
OKLCH	oklch(69.48% 0.15 261.1)
XYZ	xyz(34.2938, 33.1041, 94.1867)
Luminance	0.3311 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669BF9 #F9C466

analogous

#66E5F9 #669BF9 #7B66F9

triadic

#669BF9 #F9669B #9BF966

tetradic

#669BF9 #F966E5 #F9C466 #66F97B

square

#669BF9 #F966E5 #F9C466 #66F97B

split-complementary

#669BF9 #F97B66 #E5F966

monochromatic

#0955DC #2B75F7 #669BF9 #A1C1FB #DCE8FE

Accessibility & contrast

On white

2.76

#669BF9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.62

#669BF9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669BF9

7.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669BF9	#FFFFFF	#000000	##000000
##669BF9	1.00	2.76	7.62	7.62
#FFFFFF	2.76	1.00	21.00	21.00
#000000	7.62	21.00	1.00	1.00
##000000	7.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#73A3FD

Deuteranopia (green-blind)

#5F95F7

Tritanopia (blue-blind)

#00B0BE

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #669bf9;
/* rgb */ color: rgb(102, 155, 249);
/* oklch */ color: oklch(69.5% 0.150 261.1);

Tailwind

colors: {
  custom: {
    50: '#9db8fc',
    500: '#669bf9',
    950: '#000000',
  },
}

SCSS

$custom: #669bf9;
$custom-light: #9db8fc;
$custom-dark: #000000;

JSON

{
  "hex": "#669bf9",
  "rgb": {
    "r": 102,
    "g": 155,
    "b": 249
  },
  "hsl": {
    "h": 218.367,
    "s": 92.453,
    "l": 68.824
  },
  "oklch": {
    "l": 0.69484,
    "c": 0.14997,
    "h": 261.1
  },
  "luminance": 0.33107
}

Semantic roles & 50–950 ramp

primary

#669BF9

secondary

#F3E3C8

accent

#9300E6

background

#FAFBFF

surface

#F4F6FF

border

#CED0D7

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #669BF9

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

Preview Lab → · Contrast checker → · Palette generator →