#669CF0#669CF0

#669CF0 is a light, vivid blue. Relative luminance 0.329; OKLCH L 69.2% C 0.137 H 258.9°. Best body text is #000000 at 7.58:1 contrast (WCAG AA passes).

Color values

HEX	#669CF0
RGB	rgb(102, 156, 240)
HSL	hsl(217, 82%, 67%)
HSV	hsv(217, 58%, 94%)
CMYK	cmyk(57.5%, 35%, 0%, 5.9%)
CIE-LAB	lab(64.07, 6.61, -47.55)
CIE-LCH	lch(64.07, 48.01, 277.91°)
OKLab	oklab(69.2% -0.0263 -0.1345)
OKLCH	oklch(69.2% 0.137 258.9)
XYZ	xyz(33.0906, 32.8902, 87.0258)
Luminance	0.3289 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669CF0 #F0BA66

analogous

#66E1F0 #669CF0 #7566F0

triadic

#669CF0 #F0669C #9CF066

tetradic

#669CF0 #F066E1 #F0BA66 #66F075

square

#669CF0 #F066E1 #F0BA66 #66F075

split-complementary

#669CF0 #F07566 #E1F066

monochromatic

#145AC8 #2E78EB #669CF0 #9EC0F5 #D5E4FB

Accessibility & contrast

On white

2.77

#669CF0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.58

#669CF0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669CF0

7.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669CF0	#FFFFFF	#000000	##000000
##669CF0	1.00	2.77	7.58	7.58
#FFFFFF	2.77	1.00	21.00	21.00
#000000	7.58	21.00	1.00	1.00
##000000	7.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#79A2F3

Deuteranopia (green-blind)

#6795EE

Tritanopia (blue-blind)

#00AFBB

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #669cf0;
/* rgb */ color: rgb(102, 156, 240);
/* oklch */ color: oklch(69.2% 0.137 258.9);

Tailwind

colors: {
  custom: {
    50: '#9bb8f5',
    500: '#669cf0',
    950: '#000000',
  },
}

SCSS

$custom: #669cf0;
$custom-light: #9bb8f5;
$custom-dark: #000000;

JSON

{
  "hex": "#669cf0",
  "rgb": {
    "r": 102,
    "g": 156,
    "b": 240
  },
  "hsl": {
    "h": 216.522,
    "s": 82.143,
    "l": 67.059
  },
  "oklch": {
    "l": 0.69204,
    "c": 0.1371,
    "h": 258.9
  },
  "luminance": 0.32893
}

Semantic roles & 50–950 ramp

primary

#669CF0

secondary

#EFDEC3

accent

#8A07DF

background

#FAFBFF

surface

#F4F6FE

border

#CED0D6

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #669CF0

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

Preview Lab → · Contrast checker → · Palette generator →