#669BF4#669BF4

#669BF4 is a light, vivid blue. Relative luminance 0.328; OKLCH L 69.2% C 0.143 H 260.2°. Best body text is #000000 at 7.56:1 contrast (WCAG AA passes).

Color values

HEX	#669BF4
RGB	rgb(102, 155, 244)
HSL	hsl(218, 87%, 68%)
HSV	hsv(218, 58%, 96%)
CMYK	cmyk(58.2%, 36.5%, 0%, 4.3%)
CIE-LAB	lab(64.00, 8.46, -49.87)
CIE-LCH	lch(64.00, 50.58, 279.63°)
OKLab	oklab(69.21% -0.0243 -0.1413)
OKLCH	oklch(69.21% 0.143 260.2)
XYZ	xyz(33.5243, 32.7963, 90.1341)
Luminance	0.3280 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669BF4 #F4BF66

analogous

#66E2F4 #669BF4 #7866F4

triadic

#669BF4 #F4669B #9BF466

tetradic

#669BF4 #F466E2 #F4BF66 #66F478

square

#669BF4 #F466E2 #F4BF66 #66F478

split-complementary

#669BF4 #F47866 #E2F466

monochromatic

#0F57D1 #2D76F0 #669BF4 #9FC0F8 #D8E6FC

Accessibility & contrast

On white

2.78

#669BF4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.56

#669BF4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669BF4

7.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669BF4	#FFFFFF	#000000	##000000
##669BF4	1.00	2.78	7.56	7.56
#FFFFFF	2.78	1.00	21.00	21.00
#000000	7.56	21.00	1.00	1.00
##000000	7.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#76A2F8

Deuteranopia (green-blind)

#6395F2

Tritanopia (blue-blind)

#00AFBC

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #669bf4;
/* rgb */ color: rgb(102, 155, 244);
/* oklch */ color: oklch(69.2% 0.143 260.2);

Tailwind

colors: {
  custom: {
    50: '#9cb8f8',
    500: '#669bf4',
    950: '#000000',
  },
}

SCSS

$custom: #669bf4;
$custom-light: #9cb8f8;
$custom-dark: #000000;

JSON

{
  "hex": "#669bf4",
  "rgb": {
    "r": 102,
    "g": 155,
    "b": 244
  },
  "hsl": {
    "h": 217.606,
    "s": 86.585,
    "l": 67.843
  },
  "oklch": {
    "l": 0.69209,
    "c": 0.1434,
    "h": 260.2
  },
  "luminance": 0.32799
}

Semantic roles & 50–950 ramp

primary

#669BF4

secondary

#F1E0C5

accent

#8F02E3

background

#FAFBFF

surface

#F4F6FF

border

#CED0D7

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #669BF4

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

Preview Lab → · Contrast checker → · Palette generator →