#669CE9#669CE9

#669CE9 is a light, vivid blue. Relative luminance 0.325; OKLCH L 68.8% C 0.128 H 257.3°. Best body text is #000000 at 7.50:1 contrast (WCAG AA passes).

Color values

HEX	#669CE9
RGB	rgb(102, 156, 233)
HSL	hsl(215, 75%, 66%)
HSV	hsv(215, 56%, 91%)
CMYK	cmyk(56.2%, 33%, 0%, 8.6%)
CIE-LAB	lab(63.74, 4.39, -44.22)
CIE-LCH	lch(63.74, 44.44, 275.67°)
OKLab	oklab(68.84% -0.0281 -0.1248)
OKLCH	oklch(68.84% 0.128 257.3)
XYZ	xyz(32.0708, 32.4822, 81.6546)
Luminance	0.3249 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669CE9 #E9B366

analogous

#66DEE9 #669CE9 #7166E9

triadic

#669CE9 #E9669C #9CE966

tetradic

#669CE9 #E966DE #E9B366 #66E971

square

#669CE9 #E966DE #E9B366 #66E971

split-complementary

#669CE9 #E97166 #DEE966

monochromatic

#1B5CBA #3079E1 #669CE9 #9CBFF1 #D1E1F8

Accessibility & contrast

On white

2.80

#669CE9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.50

#669CE9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669CE9

7.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669CE9	#FFFFFF	#000000	##000000
##669CE9	1.00	2.80	7.50	7.50
#FFFFFF	2.80	1.00	21.00	21.00
#000000	7.50	21.00	1.00	1.00
##000000	7.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7CA1EC

Deuteranopia (green-blind)

#6C95E7

Tritanopia (blue-blind)

#00ADB8

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #669ce9;
/* rgb */ color: rgb(102, 156, 233);
/* oklch */ color: oklch(68.8% 0.128 257.3);

Tailwind

colors: {
  custom: {
    50: '#9ab8f0',
    500: '#669ce9',
    950: '#000000',
  },
}

SCSS

$custom: #669ce9;
$custom-light: #9ab8f0;
$custom-dark: #000000;

JSON

{
  "hex": "#669ce9",
  "rgb": {
    "r": 102,
    "g": 156,
    "b": 233
  },
  "hsl": {
    "h": 215.267,
    "s": 74.857,
    "l": 65.686
  },
  "oklch": {
    "l": 0.68836,
    "c": 0.12797,
    "h": 257.3
  },
  "luminance": 0.32485
}

Semantic roles & 50–950 ramp

primary

#669CE9

secondary

#EBD9C0

accent

#840ED7

background

#FAFBFE

surface

#F3F6FD

border

#CDD0D5

text

#0F1116

muted

#7F8084

Preview Lab

Preview with #669CE9

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

Preview Lab → · Contrast checker → · Palette generator →