#669DEE#669DEE

#669DEE is a light, vivid blue. Relative luminance 0.331; OKLCH L 69.3% C 0.133 H 257.9°. Best body text is #000000 at 7.62:1 contrast (WCAG AA passes).

Color values

HEX	#669DEE
RGB	rgb(102, 157, 238)
HSL	hsl(216, 80%, 67%)
HSV	hsv(216, 57%, 93%)
CMYK	cmyk(57.1%, 34%, 0%, 6.7%)
CIE-LAB	lab(64.25, 5.39, -46.17)
CIE-LCH	lch(64.25, 46.49, 276.66°)
OKLab	oklab(69.31% -0.0279 -0.1305)
OKLCH	oklch(69.31% 0.133 257.9)
XYZ	xyz(32.9637, 33.1090, 85.5259)
Luminance	0.3311 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669DEE #EEB766

analogous

#66E1EE #669DEE #7366EE

triadic

#669DEE #EE669D #9DEE66

tetradic

#669DEE #EE66E1 #EEB766 #66EE73

square

#669DEE #EE66E1 #EEB766 #66EE73

split-complementary

#669DEE #EE7366 #E1EE66

monochromatic

#165CC4 #2F7AE8 #669DEE #9DC0F4 #D4E4FA

Accessibility & contrast

On white

2.76

#669DEE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.62

#669DEE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669DEE

7.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669DEE	#FFFFFF	#000000	##000000
##669DEE	1.00	2.76	7.62	7.62
#FFFFFF	2.76	1.00	21.00	21.00
#000000	7.62	21.00	1.00	1.00
##000000	7.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7CA3F1

Deuteranopia (green-blind)

#6A96EC

Tritanopia (blue-blind)

#00AFBA

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #669dee;
/* rgb */ color: rgb(102, 157, 238);
/* oklch */ color: oklch(69.3% 0.133 257.9);

Tailwind

colors: {
  custom: {
    50: '#9bb9f4',
    500: '#669dee',
    950: '#000000',
  },
}

SCSS

$custom: #669dee;
$custom-light: #9bb9f4;
$custom-dark: #000000;

JSON

{
  "hex": "#669dee",
  "rgb": {
    "r": 102,
    "g": 157,
    "b": 238
  },
  "hsl": {
    "h": 215.735,
    "s": 80,
    "l": 66.667
  },
  "oklch": {
    "l": 0.69311,
    "c": 0.13346,
    "h": 257.9
  },
  "luminance": 0.33112
}

Semantic roles & 50–950 ramp

primary

#669DEE

secondary

#EEDCC2

accent

#8709DC

background

#FAFBFE

surface

#F3F6FD

border

#CDD0D5

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #669DEE

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

Preview Lab → · Contrast checker → · Palette generator →