#669FF9#669FF9

#669FF9 is a light, vivid blue. Relative luminance 0.345; OKLCH L 70.3% C 0.146 H 259.2°. Best body text is #000000 at 7.89:1 contrast (WCAG AA passes).

Color values

HEX	#669FF9
RGB	rgb(102, 159, 249)
HSL	hsl(217, 92%, 69%)
HSV	hsv(217, 59%, 98%)
CMYK	cmyk(59%, 36.1%, 0%, 2.4%)
CIE-LAB	lab(65.32, 7.75, -50.50)
CIE-LCH	lch(65.32, 51.09, 278.72°)
OKLab	oklab(70.32% -0.0273 -0.1431)
OKLCH	oklch(70.32% 0.146 259.2)
XYZ	xyz(34.9705, 34.4576, 94.4122)
Luminance	0.3446 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669FF9 #F9C066

analogous

#66E8F9 #669FF9 #7766F9

triadic

#669FF9 #F9669F #9FF966

tetradic

#669FF9 #F966E8 #F9C066 #66F977

square

#669FF9 #F966E8 #F9C066 #66F977

split-complementary

#669FF9 #F97766 #E8F966

monochromatic

#095BDC #2B7AF7 #669FF9 #A1C4FB #DCE9FE

Accessibility & contrast

On white

2.66

#669FF9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.89

#669FF9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669FF9

7.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669FF9	#FFFFFF	#000000	##000000
##669FF9	1.00	2.66	7.89	7.89
#FFFFFF	2.66	1.00	21.00	21.00
#000000	7.89	21.00	1.00	1.00
##000000	7.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#79A6FD

Deuteranopia (green-blind)

#6598F7

Tritanopia (blue-blind)

#00B3C0

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #669ff9;
/* rgb */ color: rgb(102, 159, 249);
/* oklch */ color: oklch(70.3% 0.146 259.2);

Tailwind

colors: {
  custom: {
    50: '#9cbbfb',
    500: '#669ff9',
    950: '#000000',
  },
}

SCSS

$custom: #669ff9;
$custom-light: #9cbbfb;
$custom-dark: #000000;

JSON

{
  "hex": "#669ff9",
  "rgb": {
    "r": 102,
    "g": 159,
    "b": 249
  },
  "hsl": {
    "h": 216.735,
    "s": 92.453,
    "l": 68.824
  },
  "oklch": {
    "l": 0.70322,
    "c": 0.14572,
    "h": 259.2
  },
  "luminance": 0.34461
}

Semantic roles & 50–950 ramp

primary

#669FF9

secondary

#F3E2C8

accent

#8D00E6

background

#FAFBFF

surface

#F4F6FF

border

#CED0D7

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #669FF9

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

Preview Lab → · Contrast checker → · Palette generator →