#669CFD#669CFD

#669CFD is a light, vivid blue. Relative luminance 0.337; OKLCH L 69.9% C 0.154 H 261.3°. Best body text is #000000 at 7.74:1 contrast (WCAG AA passes).

Color values

HEX	#669CFD
RGB	rgb(102, 156, 253)
HSL	hsl(219, 97%, 70%)
HSV	hsv(219, 60%, 99%)
CMYK	cmyk(59.7%, 38.3%, 0%, 0.8%)
CIE-LAB	lab(64.72, 10.78, -53.65)
CIE-LCH	lch(64.72, 54.72, 281.36°)
OKLab	oklab(69.92% -0.0233 -0.1524)
OKLCH	oklch(69.92% 0.154 261.3)
XYZ	xyz(35.0914, 33.6905, 97.5631)
Luminance	0.3369 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669CFD #FDC766

analogous

#66E8FD #669CFD #7C66FD

triadic

#669CFD #FD669C #9CFD66

tetradic

#669CFD #FD66E8 #FDC766 #66FD7C

square

#669CFD #FD66E8 #FDC766 #66FD7C

split-complementary

#669CFD #FD7C66 #E8FD66

monochromatic

#0354E6 #2A75FC #669CFD #A2C3FE #DFEAFF

Accessibility & contrast

On white

2.71

#669CFD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.74

#669CFD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669CFD

7.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669CFD	#FFFFFF	#000000	##000000
##669CFD	1.00	2.71	7.74	7.74
#FFFFFF	2.71	1.00	21.00	21.00
#000000	7.74	21.00	1.00	1.00
##000000	7.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#72A5FF

Deuteranopia (green-blind)

#5E97FB

Tritanopia (blue-blind)

#00B2C0

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #669cfd;
/* rgb */ color: rgb(102, 156, 253);
/* oklch */ color: oklch(69.9% 0.154 261.3);

Tailwind

colors: {
  custom: {
    50: '#9db8fe',
    500: '#669cfd',
    950: '#000000',
  },
}

SCSS

$custom: #669cfd;
$custom-light: #9db8fe;
$custom-dark: #000000;

JSON

{
  "hex": "#669cfd",
  "rgb": {
    "r": 102,
    "g": 156,
    "b": 253
  },
  "hsl": {
    "h": 218.543,
    "s": 97.419,
    "l": 69.608
  },
  "oklch": {
    "l": 0.69915,
    "c": 0.15414,
    "h": 261.3
  },
  "luminance": 0.33694
}

Semantic roles & 50–950 ramp

primary

#669CFD

secondary

#F5E6CA

accent

#9300E6

background

#FAFBFF

surface

#F4F6FF

border

#CED0D7

text

#0F1118

muted

#7F8086

Preview Lab

Preview with #669CFD

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

Preview Lab → · Contrast checker → · Palette generator →