#669BF3#669BF3

#669BF3 is a light, vivid blue. Relative luminance 0.327; OKLCH L 69.2% C 0.142 H 260.1°. Best body text is #000000 at 7.55:1 contrast (WCAG AA passes).

Color values

HEX	#669BF3
RGB	rgb(102, 155, 243)
HSL	hsl(217, 85%, 68%)
HSV	hsv(217, 58%, 95%)
CMYK	cmyk(58%, 36.2%, 0%, 4.7%)
CIE-LAB	lab(63.95, 8.14, -49.40)
CIE-LCH	lch(63.95, 50.06, 279.36°)
OKLab	oklab(69.15% -0.0245 -0.1399)
OKLCH	oklch(69.15% 0.142 260.1)
XYZ	xyz(33.3729, 32.7357, 89.3366)
Luminance	0.3274 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669BF3 #F3BE66

analogous

#66E1F3 #669BF3 #7766F3

triadic

#669BF3 #F3669B #9BF366

tetradic

#669BF3 #F366E1 #F3BE66 #66F377

square

#669BF3 #F366E1 #F3BE66 #66F377

split-complementary

#669BF3 #F37766 #E1F366

monochromatic

#1058CE #2D76EF #669BF3 #9FC0F7 #D7E5FC

Accessibility & contrast

On white

2.78

#669BF3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.55

#669BF3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669BF3

7.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669BF3	#FFFFFF	#000000	##000000
##669BF3	1.00	2.78	7.55	7.55
#FFFFFF	2.78	1.00	21.00	21.00
#000000	7.55	21.00	1.00	1.00
##000000	7.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#76A2F7

Deuteranopia (green-blind)

#6495F1

Tritanopia (blue-blind)

#00AFBB

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #669bf3;
/* rgb */ color: rgb(102, 155, 243);
/* oklch */ color: oklch(69.2% 0.142 260.1);

Tailwind

colors: {
  custom: {
    50: '#9cb8f7',
    500: '#669bf3',
    950: '#000000',
  },
}

SCSS

$custom: #669bf3;
$custom-light: #9cb8f7;
$custom-dark: #000000;

JSON

{
  "hex": "#669bf3",
  "rgb": {
    "r": 102,
    "g": 155,
    "b": 243
  },
  "hsl": {
    "h": 217.447,
    "s": 85.455,
    "l": 67.647
  },
  "oklch": {
    "l": 0.69154,
    "c": 0.14208,
    "h": 260.1
  },
  "luminance": 0.32739
}

Semantic roles & 50–950 ramp

primary

#669BF3

secondary

#F0E0C5

accent

#8E04E2

background

#FAFBFF

surface

#F4F6FF

border

#CED0D7

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #669BF3

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

Preview Lab → · Contrast checker → · Palette generator →