#665BC0#665BC0

#665BC0 is a mid, vivid blue. Relative luminance 0.141; OKLCH L 53.3% C 0.153 H 284.9°. Best body text is #FFFFFF at 5.49:1 contrast (WCAG AA passes).

Color values

HEX	#665BC0
RGB	rgb(102, 91, 192)
HSL	hsl(247, 44%, 55%)
HSV	hsv(247, 53%, 75%)
CMYK	cmyk(46.9%, 52.6%, 0%, 24.7%)
CIE-LAB	lab(44.39, 30.66, -51.80)
CIE-LCH	lch(44.39, 60.19, 300.62°)
OKLab	oklab(53.3% 0.0393 -0.1475)
OKLCH	oklch(53.3% 0.153 284.9)
XYZ	xyz(18.7322, 14.1119, 51.5958)
Luminance	0.1411 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665BC0 #B5C05B

analogous

#5B82C0 #665BC0 #995BC0

triadic

#665BC0 #C0665B #5BC066

tetradic

#665BC0 #C05B82 #B5C05B #5BC099

square

#665BC0 #C05B82 #B5C05B #5BC099

split-complementary

#665BC0 #C0995B #82C05B

monochromatic

#342D74 #483EA0 #665BC0 #8F87D1 #B8B3E2

Accessibility & contrast

On white

5.49

#665BC0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.82

#665BC0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665BC0

5.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665BC0	#FFFFFF	#000000	##FFFFFF
##665BC0	1.00	5.49	3.82	5.49
#FFFFFF	5.49	1.00	21.00	1.00
#000000	3.82	21.00	1.00	21.00
##FFFFFF	5.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#296CC4

Deuteranopia (green-blind)

#2566BE

Tritanopia (blue-blind)

#487185

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #665bc0;
/* rgb */ color: rgb(102, 91, 192);
/* oklch */ color: oklch(53.3% 0.153 284.9);

Tailwind

colors: {
  custom: {
    50: '#9789d4',
    500: '#665bc0',
    950: '#000000',
  },
}

SCSS

$custom: #665bc0;
$custom-light: #9789d4;
$custom-dark: #000000;

JSON

{
  "hex": "#665bc0",
  "rgb": {
    "r": 102,
    "g": 91,
    "b": 192
  },
  "hsl": {
    "h": 246.535,
    "s": 44.493,
    "l": 55.49
  },
  "oklch": {
    "l": 0.53302,
    "c": 0.15265,
    "h": 284.9
  },
  "luminance": 0.14113
}

Semantic roles & 50–950 ramp

primary

#665BC0

secondary

#CCD0A6

accent

#D454C6

background

#F9F8FD

surface

#F2F0FA

border

#CCCBD3

text

#0E0B14

muted

#7E7C83

Preview Lab

Preview with #665BC0

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

Preview Lab → · Contrast checker → · Palette generator →