#669BF0#669BF0

#669BF0 is a light, vivid blue. Relative luminance 0.326; OKLCH L 69.0% C 0.138 H 259.5°. Best body text is #000000 at 7.51:1 contrast (WCAG AA passes).

Color values

HEX	#669BF0
RGB	rgb(102, 155, 240)
HSL	hsl(217, 82%, 67%)
HSV	hsv(217, 58%, 94%)
CMYK	cmyk(57.5%, 35.4%, 0%, 5.9%)
CIE-LAB	lab(63.80, 7.19, -47.98)
CIE-LCH	lch(63.80, 48.52, 278.52°)
OKLab	oklab(68.99% -0.0253 -0.1358)
OKLCH	oklch(68.99% 0.138 259.5)
XYZ	xyz(32.9235, 32.5560, 86.9701)
Luminance	0.3256 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669BF0 #F0BB66

analogous

#66E0F0 #669BF0 #7666F0

triadic

#669BF0 #F0669B #9BF066

tetradic

#669BF0 #F066E0 #F0BB66 #66F076

square

#669BF0 #F066E0 #F0BB66 #66F076

split-complementary

#669BF0 #F07666 #E0F066

monochromatic

#1459C8 #2E77EB #669BF0 #9EBFF5 #D5E4FB

Accessibility & contrast

On white

2.80

#669BF0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.51

#669BF0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669BF0

7.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669BF0	#FFFFFF	#000000	##000000
##669BF0	1.00	2.80	7.51	7.51
#FFFFFF	2.80	1.00	21.00	21.00
#000000	7.51	21.00	1.00	1.00
##000000	7.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#78A2F3

Deuteranopia (green-blind)

#6695EE

Tritanopia (blue-blind)

#00AEBA

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #669bf0;
/* rgb */ color: rgb(102, 155, 240);
/* oklch */ color: oklch(69.0% 0.138 259.5);

Tailwind

colors: {
  custom: {
    50: '#9bb8f5',
    500: '#669bf0',
    950: '#000000',
  },
}

SCSS

$custom: #669bf0;
$custom-light: #9bb8f5;
$custom-dark: #000000;

JSON

{
  "hex": "#669bf0",
  "rgb": {
    "r": 102,
    "g": 155,
    "b": 240
  },
  "hsl": {
    "h": 216.957,
    "s": 82.143,
    "l": 67.059
  },
  "oklch": {
    "l": 0.68992,
    "c": 0.13814,
    "h": 259.5
  },
  "luminance": 0.32559
}

Semantic roles & 50–950 ramp

primary

#669BF0

secondary

#EFDEC3

accent

#8C07DF

background

#FAFBFF

surface

#F4F6FE

border

#CED0D6

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #669BF0

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

Preview Lab → · Contrast checker → · Palette generator →