#669FF4#669FF4

#669FF4 is a light, vivid blue. Relative luminance 0.342; OKLCH L 70.1% C 0.139 H 258.2°. Best body text is #000000 at 7.83:1 contrast (WCAG AA passes).

Color values

HEX	#669FF4
RGB	rgb(102, 159, 244)
HSL	hsl(216, 87%, 68%)
HSV	hsv(216, 58%, 96%)
CMYK	cmyk(58.2%, 34.8%, 0%, 4.3%)
CIE-LAB	lab(65.08, 6.15, -48.15)
CIE-LCH	lch(65.08, 48.54, 277.27°)
OKLab	oklab(70.05% -0.0285 -0.1363)
OKLCH	oklch(70.05% 0.139 258.2)
XYZ	xyz(34.2010, 34.1498, 90.3596)
Luminance	0.3415 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669FF4 #F4BB66

analogous

#66E6F4 #669FF4 #7466F4

triadic

#669FF4 #F4669F #9FF466

tetradic

#669FF4 #F466E6 #F4BB66 #66F474

square

#669FF4 #F466E6 #F4BB66 #66F474

split-complementary

#669FF4 #F47466 #E6F466

monochromatic

#0F5DD1 #2D7BF0 #669FF4 #9FC3F8 #D8E7FC

Accessibility & contrast

On white

2.68

#669FF4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.83

#669FF4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669FF4

7.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669FF4	#FFFFFF	#000000	##000000
##669FF4	1.00	2.68	7.83	7.83
#FFFFFF	2.68	1.00	21.00	21.00
#000000	7.83	21.00	1.00	1.00
##000000	7.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7CA5F8

Deuteranopia (green-blind)

#6998F2

Tritanopia (blue-blind)

#00B2BE

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #669ff4;
/* rgb */ color: rgb(102, 159, 244);
/* oklch */ color: oklch(70.1% 0.139 258.2);

Tailwind

colors: {
  custom: {
    50: '#9cbbf8',
    500: '#669ff4',
    950: '#000000',
  },
}

SCSS

$custom: #669ff4;
$custom-light: #9cbbf8;
$custom-dark: #000000;

JSON

{
  "hex": "#669ff4",
  "rgb": {
    "r": 102,
    "g": 159,
    "b": 244
  },
  "hsl": {
    "h": 215.915,
    "s": 86.585,
    "l": 67.843
  },
  "oklch": {
    "l": 0.70053,
    "c": 0.13922,
    "h": 258.2
  },
  "luminance": 0.34153
}

Semantic roles & 50–950 ramp

primary

#669FF4

secondary

#F1DFC5

accent

#8902E3

background

#FAFBFF

surface

#F4F6FF

border

#CED0D7

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #669FF4

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

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