#669AEF#669AEF

#669AEF is a light, vivid blue. Relative luminance 0.322; OKLCH L 68.7% C 0.138 H 259.8°. Best body text is #000000 at 7.43:1 contrast (WCAG AA passes).

Color values

HEX	#669AEF
RGB	rgb(102, 154, 239)
HSL	hsl(217, 81%, 67%)
HSV	hsv(217, 57%, 94%)
CMYK	cmyk(57.3%, 35.6%, 0%, 6.3%)
CIE-LAB	lab(63.48, 7.45, -47.94)
CIE-LCH	lch(63.48, 48.51, 278.83°)
OKLab	oklab(68.73% -0.0244 -0.1357)
OKLCH	oklch(68.73% 0.138 259.8)
XYZ	xyz(32.6097, 32.1652, 86.1347)
Luminance	0.3217 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669AEF #EFBB66

analogous

#66DFEF #669AEF #7766EF

triadic

#669AEF #EF669A #9AEF66

tetradic

#669AEF #EF66DF #EFBB66 #66EF77

square

#669AEF #EF66DF #EFBB66 #66EF77

split-complementary

#669AEF #EF7766 #DFEF66

monochromatic

#1558C6 #2F75E9 #669AEF #9DBFF5 #D5E3FB

Accessibility & contrast

On white

2.83

#669AEF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.43

#669AEF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669AEF

7.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669AEF	#FFFFFF	#000000	##000000
##669AEF	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)

#77A1F2

Deuteranopia (green-blind)

#6594ED

Tritanopia (blue-blind)

#00ADB9

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #669aef;
/* rgb */ color: rgb(102, 154, 239);
/* oklch */ color: oklch(68.7% 0.138 259.8);

Tailwind

colors: {
  custom: {
    50: '#9bb7f4',
    500: '#669aef',
    950: '#000000',
  },
}

SCSS

$custom: #669aef;
$custom-light: #9bb7f4;
$custom-dark: #000000;

JSON

{
  "hex": "#669aef",
  "rgb": {
    "r": 102,
    "g": 154,
    "b": 239
  },
  "hsl": {
    "h": 217.226,
    "s": 81.065,
    "l": 66.863
  },
  "oklch": {
    "l": 0.68727,
    "c": 0.13787,
    "h": 259.8
  },
  "luminance": 0.32168
}

Semantic roles & 50–950 ramp

primary

#669AEF

secondary

#EEDEC2

accent

#8C08DD

background

#FAFBFE

surface

#F4F6FD

border

#CED0D5

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #669AEF

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

Preview Lab → · Contrast checker → · Palette generator →