#669DF0#669DF0

#669DF0 is a light, vivid blue. Relative luminance 0.332; OKLCH L 69.4% C 0.136 H 258.4°. Best body text is #000000 at 7.65:1 contrast (WCAG AA passes).

Color values

HEX	#669DF0
RGB	rgb(102, 157, 240)
HSL	hsl(216, 82%, 67%)
HSV	hsv(216, 58%, 94%)
CMYK	cmyk(57.5%, 34.6%, 0%, 5.9%)
CIE-LAB	lab(64.34, 6.03, -47.12)
CIE-LCH	lch(64.34, 47.51, 277.29°)
OKLab	oklab(69.42% -0.0274 -0.1333)
OKLCH	oklch(69.42% 0.136 258.4)
XYZ	xyz(33.2591, 33.2272, 87.0820)
Luminance	0.3323 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669DF0 #F0B966

analogous

#66E2F0 #669DF0 #7466F0

triadic

#669DF0 #F0669D #9DF066

tetradic

#669DF0 #F066E2 #F0B966 #66F074

square

#669DF0 #F066E2 #F0B966 #66F074

split-complementary

#669DF0 #F07466 #E2F066

monochromatic

#145CC8 #2E79EB #669DF0 #9EC1F5 #D5E4FB

Accessibility & contrast

On white

2.75

#669DF0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.65

#669DF0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669DF0

7.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669DF0	#FFFFFF	#000000	##000000
##669DF0	1.00	2.75	7.65	7.65
#FFFFFF	2.75	1.00	21.00	21.00
#000000	7.65	21.00	1.00	1.00
##000000	7.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7BA3F3

Deuteranopia (green-blind)

#6996EE

Tritanopia (blue-blind)

#00B0BB

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #669df0;
/* rgb */ color: rgb(102, 157, 240);
/* oklch */ color: oklch(69.4% 0.136 258.4);

Tailwind

colors: {
  custom: {
    50: '#9bb9f5',
    500: '#669df0',
    950: '#000000',
  },
}

SCSS

$custom: #669df0;
$custom-light: #9bb9f5;
$custom-dark: #000000;

JSON

{
  "hex": "#669df0",
  "rgb": {
    "r": 102,
    "g": 157,
    "b": 240
  },
  "hsl": {
    "h": 216.087,
    "s": 82.143,
    "l": 67.059
  },
  "oklch": {
    "l": 0.69416,
    "c": 0.13606,
    "h": 258.4
  },
  "luminance": 0.3323
}

Semantic roles & 50–950 ramp

primary

#669DF0

secondary

#EFDDC3

accent

#8907DF

background

#FAFBFF

surface

#F4F6FE

border

#CED0D6

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #669DF0

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

Preview Lab → · Contrast checker → · Palette generator →