#669DF9#669DF9

#669DF9 is a light, vivid blue. Relative luminance 0.338; OKLCH L 69.9% C 0.148 H 260.2°. Best body text is #000000 at 7.76:1 contrast (WCAG AA passes).

Color values

HEX	#669DF9
RGB	rgb(102, 157, 249)
HSL	hsl(218, 92%, 69%)
HSV	hsv(218, 59%, 98%)
CMYK	cmyk(59%, 36.9%, 0%, 2.4%)
CIE-LAB	lab(64.78, 8.91, -51.36)
CIE-LCH	lch(64.78, 52.12, 279.84°)
OKLab	oklab(69.9% -0.0253 -0.1456)
OKLCH	oklch(69.9% 0.148 260.2)
XYZ	xyz(34.6294, 33.7753, 94.2985)
Luminance	0.3378 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669DF9 #F9C266

analogous

#66E7F9 #669DF9 #7966F9

triadic

#669DF9 #F9669D #9DF966

tetradic

#669DF9 #F966E7 #F9C266 #66F979

square

#669DF9 #F966E7 #F9C266 #66F979

split-complementary

#669DF9 #F97966 #E7F966

monochromatic

#0958DC #2B77F7 #669DF9 #A1C3FB #DCE8FE

Accessibility & contrast

On white

2.71

#669DF9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.76

#669DF9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669DF9

7.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669DF9	#FFFFFF	#000000	##000000
##669DF9	1.00	2.71	7.76	7.76
#FFFFFF	2.71	1.00	21.00	21.00
#000000	7.76	21.00	1.00	1.00
##000000	7.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#76A5FD

Deuteranopia (green-blind)

#6297F7

Tritanopia (blue-blind)

#00B2BF

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #669df9;
/* rgb */ color: rgb(102, 157, 249);
/* oklch */ color: oklch(69.9% 0.148 260.2);

Tailwind

colors: {
  custom: {
    50: '#9db9fc',
    500: '#669df9',
    950: '#000000',
  },
}

SCSS

$custom: #669df9;
$custom-light: #9db9fc;
$custom-dark: #000000;

JSON

{
  "hex": "#669df9",
  "rgb": {
    "r": 102,
    "g": 157,
    "b": 249
  },
  "hsl": {
    "h": 217.551,
    "s": 92.453,
    "l": 68.824
  },
  "oklch": {
    "l": 0.69902,
    "c": 0.14782,
    "h": 260.2
  },
  "luminance": 0.33778
}

Semantic roles & 50–950 ramp

primary

#669DF9

secondary

#F3E3C8

accent

#9000E6

background

#FAFBFF

surface

#F4F6FF

border

#CED0D7

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #669DF9

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

Preview Lab → · Contrast checker → · Palette generator →