#669DF8#669DF8

#669DF8 is a light, vivid blue. Relative luminance 0.337; OKLCH L 69.8% C 0.147 H 260.0°. Best body text is #000000 at 7.74:1 contrast (WCAG AA passes).

Color values

HEX	#669DF8
RGB	rgb(102, 157, 248)
HSL	hsl(217, 91%, 69%)
HSV	hsv(217, 59%, 97%)
CMYK	cmyk(58.9%, 36.7%, 0%, 2.7%)
CIE-LAB	lab(64.73, 8.59, -50.89)
CIE-LCH	lch(64.73, 51.61, 279.58°)
OKLab	oklab(69.85% -0.0255 -0.1443)
OKLCH	oklch(69.85% 0.147 260)
XYZ	xyz(34.4738, 33.7130, 93.4793)
Luminance	0.3372 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669DF8 #F8C166

analogous

#66E6F8 #669DF8 #7866F8

triadic

#669DF8 #F8669D #9DF866

tetradic

#669DF8 #F866E6 #F8C166 #66F878

square

#669DF8 #F866E6 #F8C166 #66F878

split-complementary

#669DF8 #F87866 #E6F866

monochromatic

#0A58DA #2B78F5 #669DF8 #A1C2FB #DBE8FD

Accessibility & contrast

On white

2.71

#669DF8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.74

#669DF8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669DF8

7.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669DF8	#FFFFFF	#000000	##000000
##669DF8	1.00	2.71	7.74	7.74
#FFFFFF	2.71	1.00	21.00	21.00
#000000	7.74	21.00	1.00	1.00
##000000	7.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#77A4FC

Deuteranopia (green-blind)

#6397F6

Tritanopia (blue-blind)

#00B1BF

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #669df8;
/* rgb */ color: rgb(102, 157, 248);
/* oklch */ color: oklch(69.8% 0.147 260.0);

Tailwind

colors: {
  custom: {
    50: '#9cb9fb',
    500: '#669df8',
    950: '#000000',
  },
}

SCSS

$custom: #669df8;
$custom-light: #9cb9fb;
$custom-dark: #000000;

JSON

{
  "hex": "#669df8",
  "rgb": {
    "r": 102,
    "g": 157,
    "b": 248
  },
  "hsl": {
    "h": 217.397,
    "s": 91.25,
    "l": 68.627
  },
  "oklch": {
    "l": 0.69847,
    "c": 0.14651,
    "h": 260
  },
  "luminance": 0.33716
}

Semantic roles & 50–950 ramp

primary

#669DF8

secondary

#F3E2C7

accent

#8F00E6

background

#FAFBFF

surface

#F4F6FF

border

#CED0D7

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #669DF8

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

Preview Lab → · Contrast checker → · Palette generator →