#669FEF#669FEF

#669FEF is a light, vivid blue. Relative luminance 0.339; OKLCH L 69.8% C 0.133 H 257.0°. Best body text is #000000 at 7.77:1 contrast (WCAG AA passes).

Color values

HEX	#669FEF
RGB	rgb(102, 159, 239)
HSL	hsl(215, 81%, 67%)
HSV	hsv(215, 57%, 94%)
CMYK	cmyk(57.3%, 33.5%, 0%, 6.3%)
CIE-LAB	lab(64.84, 4.56, -45.79)
CIE-LCH	lch(64.84, 46.01, 275.68°)
OKLab	oklab(69.79% -0.0298 -0.1294)
OKLCH	oklch(69.79% 0.133 257)
XYZ	xyz(33.4521, 33.8502, 86.4155)
Luminance	0.3385 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669FEF #EFB666

analogous

#66E4EF #669FEF #7266EF

triadic

#669FEF #EF669F #9FEF66

tetradic

#669FEF #EF66E4 #EFB666 #66EF72

square

#669FEF #EF66E4 #EFB666 #66EF72

split-complementary

#669FEF #EF7266 #E4EF66

monochromatic

#155EC6 #2F7CE9 #669FEF #9DC2F5 #D5E5FB

Accessibility & contrast

On white

2.70

#669FEF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.77

#669FEF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669FEF

7.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669FEF	#FFFFFF	#000000	##000000
##669FEF	1.00	2.70	7.77	7.77
#FFFFFF	2.70	1.00	21.00	21.00
#000000	7.77	21.00	1.00	1.00
##000000	7.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7EA4F2

Deuteranopia (green-blind)

#6C97ED

Tritanopia (blue-blind)

#00B1BC

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #669fef;
/* rgb */ color: rgb(102, 159, 239);
/* oklch */ color: oklch(69.8% 0.133 257.0);

Tailwind

colors: {
  custom: {
    50: '#9bbbf4',
    500: '#669fef',
    950: '#000000',
  },
}

SCSS

$custom: #669fef;
$custom-light: #9bbbf4;
$custom-dark: #000000;

JSON

{
  "hex": "#669fef",
  "rgb": {
    "r": 102,
    "g": 159,
    "b": 239
  },
  "hsl": {
    "h": 215.036,
    "s": 81.065,
    "l": 66.863
  },
  "oklch": {
    "l": 0.6979,
    "c": 0.13275,
    "h": 257
  },
  "luminance": 0.33853
}

Semantic roles & 50–950 ramp

primary

#669FEF

secondary

#EEDCC2

accent

#8508DD

background

#FAFBFE

surface

#F4F6FD

border

#CED0D5

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #669FEF

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

Preview Lab → · Contrast checker → · Palette generator →