#665CC0#665CC0

#665CC0 is a mid, vivid blue. Relative luminance 0.143; OKLCH L 53.5% C 0.151 H 284.6°. Best body text is #FFFFFF at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#665CC0
RGB	rgb(102, 92, 192)
HSL	hsl(246, 44%, 56%)
HSV	hsv(246, 52%, 75%)
CMYK	cmyk(46.9%, 52.1%, 0%, 24.7%)
CIE-LAB	lab(44.64, 30.05, -51.41)
CIE-LCH	lch(44.64, 59.54, 300.31°)
OKLab	oklab(53.49% 0.0381 -0.1463)
OKLCH	oklch(53.49% 0.151 284.6)
XYZ	xyz(18.8183, 14.2840, 51.6245)
Luminance	0.1429 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665CC0 #B6C05C

analogous

#5C84C0 #665CC0 #985CC0

triadic

#665CC0 #C0665C #5CC066

tetradic

#665CC0 #C05C84 #B6C05C #5CC098

square

#665CC0 #C05C84 #B6C05C #5CC098

split-complementary

#665CC0 #C0985C #84C05C

monochromatic

#342D75 #483EA1 #665CC0 #8F88D1 #B9B4E2

Accessibility & contrast

On white

5.44

#665CC0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.86

#665CC0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665CC0

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665CC0	#FFFFFF	#000000	##FFFFFF
##665CC0	1.00	5.44	3.86	5.44
#FFFFFF	5.44	1.00	21.00	1.00
#000000	3.86	21.00	1.00	21.00
##FFFFFF	5.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C6DC3

Deuteranopia (green-blind)

#2766BE

Tritanopia (blue-blind)

#487285

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #665cc0;
/* rgb */ color: rgb(102, 92, 192);
/* oklch */ color: oklch(53.5% 0.151 284.6);

Tailwind

colors: {
  custom: {
    50: '#978ad4',
    500: '#665cc0',
    950: '#000000',
  },
}

SCSS

$custom: #665cc0;
$custom-light: #978ad4;
$custom-dark: #000000;

JSON

{
  "hex": "#665cc0",
  "rgb": {
    "r": 102,
    "g": 92,
    "b": 192
  },
  "hsl": {
    "h": 246,
    "s": 44.248,
    "l": 55.686
  },
  "oklch": {
    "l": 0.53485,
    "c": 0.15123,
    "h": 284.6
  },
  "luminance": 0.14285
}

Semantic roles & 50–950 ramp

primary

#665CC0

secondary

#CDD1A7

accent

#D454C7

background

#F9F8FD

surface

#F2F0FA

border

#CCCBD3

text

#0E0B14

muted

#7E7C83

Preview Lab

Preview with #665CC0

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

Preview Lab → · Contrast checker → · Palette generator →