#669FFC#669FFC

#669FFC is a light, vivid blue. Relative luminance 0.346; OKLCH L 70.5% C 0.150 H 259.7°. Best body text is #000000 at 7.93:1 contrast (WCAG AA passes).

Color values

HEX	#669FFC
RGB	rgb(102, 159, 252)
HSL	hsl(217, 96%, 69%)
HSV	hsv(217, 60%, 99%)
CMYK	cmyk(59.5%, 36.9%, 0%, 1.2%)
CIE-LAB	lab(65.47, 8.71, -51.90)
CIE-LCH	lch(65.47, 52.63, 279.53°)
OKLab	oklab(70.49% -0.0266 -0.1472)
OKLCH	oklch(70.49% 0.15 259.7)
XYZ	xyz(35.4422, 34.6462, 96.8962)
Luminance	0.3465 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669FFC #FCC366

analogous

#66EAFC #669FFC #7866FC

triadic

#669FFC #FC669F #9FFC66

tetradic

#669FFC #FC66EA #FCC366 #66FC78

square

#669FFC #FC66EA #FCC366 #66FC78

split-complementary

#669FFC #FC7866 #EAFC66

monochromatic

#0459E3 #2A79FB #669FFC #A2C5FD #DEEAFE

Accessibility & contrast

On white

2.65

#669FFC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.93

#669FFC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669FFC

7.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669FFC	#FFFFFF	#000000	##000000
##669FFC	1.00	2.65	7.93	7.93
#FFFFFF	2.65	1.00	21.00	21.00
#000000	7.93	21.00	1.00	1.00
##000000	7.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#77A7FF

Deuteranopia (green-blind)

#6399FA

Tritanopia (blue-blind)

#00B4C1

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #669ffc;
/* rgb */ color: rgb(102, 159, 252);
/* oklch */ color: oklch(70.5% 0.150 259.7);

Tailwind

colors: {
  custom: {
    50: '#9dbafe',
    500: '#669ffc',
    950: '#000000',
  },
}

SCSS

$custom: #669ffc;
$custom-light: #9dbafe;
$custom-dark: #000000;

JSON

{
  "hex": "#669ffc",
  "rgb": {
    "r": 102,
    "g": 159,
    "b": 252
  },
  "hsl": {
    "h": 217.2,
    "s": 96.154,
    "l": 69.412
  },
  "oklch": {
    "l": 0.70485,
    "c": 0.14962,
    "h": 259.7
  },
  "luminance": 0.34649
}

Semantic roles & 50–950 ramp

primary

#669FFC

secondary

#F5E4C9

accent

#8E00E6

background

#FAFBFF

surface

#F4F6FF

border

#CED0D7

text

#0F1118

muted

#7F8086

Preview Lab

Preview with #669FFC

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

Preview Lab → · Contrast checker → · Palette generator →