#669BE9#669BE9

#669BE9 is a light, vivid blue. Relative luminance 0.322; OKLCH L 68.6% C 0.129 H 257.9°. Best body text is #000000 at 7.43:1 contrast (WCAG AA passes).

Color values

HEX	#669BE9
RGB	rgb(102, 155, 233)
HSL	hsl(216, 75%, 66%)
HSV	hsv(216, 56%, 91%)
CMYK	cmyk(56.2%, 33.5%, 0%, 8.6%)
CIE-LAB	lab(63.47, 4.96, -44.66)
CIE-LCH	lch(63.47, 44.93, 276.34°)
OKLab	oklab(68.62% -0.027 -0.1261)
OKLCH	oklch(68.62% 0.129 257.9)
XYZ	xyz(31.9037, 32.1480, 81.5989)
Luminance	0.3215 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669BE9 #E9B466

analogous

#66DDE9 #669BE9 #7266E9

triadic

#669BE9 #E9669B #9BE966

tetradic

#669BE9 #E966DD #E9B466 #66E972

square

#669BE9 #E966DD #E9B466 #66E972

split-complementary

#669BE9 #E97266 #DDE966

monochromatic

#1B5BBA #3078E1 #669BE9 #9CBEF1 #D1E1F8

Accessibility & contrast

On white

2.83

#669BE9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.43

#669BE9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669BE9

7.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669BE9	#FFFFFF	#000000	##000000
##669BE9	1.00	2.83	7.43	7.43
#FFFFFF	2.83	1.00	21.00	21.00
#000000	7.43	21.00	1.00	1.00
##000000	7.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7BA0EC

Deuteranopia (green-blind)

#6A94E7

Tritanopia (blue-blind)

#00ACB7

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #669be9;
/* rgb */ color: rgb(102, 155, 233);
/* oklch */ color: oklch(68.6% 0.129 257.9);

Tailwind

colors: {
  custom: {
    50: '#9ab8f0',
    500: '#669be9',
    950: '#000000',
  },
}

SCSS

$custom: #669be9;
$custom-light: #9ab8f0;
$custom-dark: #000000;

JSON

{
  "hex": "#669be9",
  "rgb": {
    "r": 102,
    "g": 155,
    "b": 233
  },
  "hsl": {
    "h": 215.725,
    "s": 74.857,
    "l": 65.686
  },
  "oklch": {
    "l": 0.68622,
    "c": 0.12897,
    "h": 257.9
  },
  "luminance": 0.32151
}

Semantic roles & 50–950 ramp

primary

#669BE9

secondary

#EBDAC0

accent

#860ED7

background

#FAFBFE

surface

#F3F6FD

border

#CDD0D5

text

#0F1116

muted

#7F8084

Preview Lab

Preview with #669BE9

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

Preview Lab → · Contrast checker → · Palette generator →