#669DF4#669DF4

#669DF4 is a light, vivid blue. Relative luminance 0.335; OKLCH L 69.6% C 0.141 H 259.2°. Best body text is #000000 at 7.69:1 contrast (WCAG AA passes).

Color values

HEX	#669DF4
RGB	rgb(102, 157, 244)
HSL	hsl(217, 87%, 68%)
HSV	hsv(217, 58%, 96%)
CMYK	cmyk(58.2%, 35.7%, 0%, 4.3%)
CIE-LAB	lab(64.54, 7.30, -49.01)
CIE-LCH	lch(64.54, 49.55, 278.48°)
OKLab	oklab(69.63% -0.0264 -0.1388)
OKLCH	oklch(69.63% 0.141 259.2)
XYZ	xyz(33.8599, 33.4675, 90.2459)
Luminance	0.3347 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669DF4 #F4BD66

analogous

#66E4F4 #669DF4 #7666F4

triadic

#669DF4 #F4669D #9DF466

tetradic

#669DF4 #F466E4 #F4BD66 #66F476

square

#669DF4 #F466E4 #F4BD66 #66F476

split-complementary

#669DF4 #F47666 #E4F466

monochromatic

#0F5AD1 #2D78F0 #669DF4 #9FC2F8 #D8E6FC

Accessibility & contrast

On white

2.73

#669DF4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.69

#669DF4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669DF4

7.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669DF4	#FFFFFF	#000000	##000000
##669DF4	1.00	2.73	7.69	7.69
#FFFFFF	2.73	1.00	21.00	21.00
#000000	7.69	21.00	1.00	1.00
##000000	7.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#79A4F8

Deuteranopia (green-blind)

#6696F2

Tritanopia (blue-blind)

#00B1BD

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #669df4;
/* rgb */ color: rgb(102, 157, 244);
/* oklch */ color: oklch(69.6% 0.141 259.2);

Tailwind

colors: {
  custom: {
    50: '#9cb9f8',
    500: '#669df4',
    950: '#000000',
  },
}

SCSS

$custom: #669df4;
$custom-light: #9cb9f8;
$custom-dark: #000000;

JSON

{
  "hex": "#669df4",
  "rgb": {
    "r": 102,
    "g": 157,
    "b": 244
  },
  "hsl": {
    "h": 216.761,
    "s": 86.585,
    "l": 67.843
  },
  "oklch": {
    "l": 0.6963,
    "c": 0.14128,
    "h": 259.2
  },
  "luminance": 0.3347
}

Semantic roles & 50–950 ramp

primary

#669DF4

secondary

#F1E0C5

accent

#8C02E3

background

#FAFBFF

surface

#F4F6FF

border

#CED0D7

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #669DF4

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

Preview Lab → · Contrast checker → · Palette generator →