#665AC6#665AC6

#665AC6 is a mid, vivid blue. Relative luminance 0.142; OKLCH L 53.5% C 0.162 H 284.5°. Best body text is #FFFFFF at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#665AC6
RGB	rgb(102, 90, 198)
HSL	hsl(247, 49%, 56%)
HSV	hsv(247, 55%, 78%)
CMYK	cmyk(48.5%, 54.5%, 0%, 22.4%)
CIE-LAB	lab(44.54, 33.08, -55.04)
CIE-LCH	lch(44.54, 64.22, 301.00°)
OKLab	oklab(53.53% 0.0407 -0.157)
OKLCH	oklch(53.53% 0.162 284.5)
XYZ	xyz(19.3257, 14.2134, 55.1403)
Luminance	0.1421 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665AC6 #BAC65A

analogous

#5A84C6 #665AC6 #9C5AC6

triadic

#665AC6 #C6665A #5AC666

tetradic

#665AC6 #C65A84 #BAC65A #5AC69C

square

#665AC6 #C65A84 #BAC65A #5AC69C

split-complementary

#665AC6 #C69C5A #84C65A

monochromatic

#332B7B #463AA9 #665AC6 #9087D6 #BAB5E5

Accessibility & contrast

On white

5.46

#665AC6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.84

#665AC6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665AC6

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665AC6	#FFFFFF	#000000	##FFFFFF
##665AC6	1.00	5.46	3.84	5.46
#FFFFFF	5.46	1.00	21.00	1.00
#000000	3.84	21.00	1.00	21.00
##FFFFFF	5.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D6DCA

Deuteranopia (green-blind)

#1666C4

Tritanopia (blue-blind)

#447287

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #665ac6;
/* rgb */ color: rgb(102, 90, 198);
/* oklch */ color: oklch(53.5% 0.162 284.5);

Tailwind

colors: {
  custom: {
    50: '#9889d8',
    500: '#665ac6',
    950: '#000000',
  },
}

SCSS

$custom: #665ac6;
$custom-light: #9889d8;
$custom-dark: #000000;

JSON

{
  "hex": "#665ac6",
  "rgb": {
    "r": 102,
    "g": 90,
    "b": 198
  },
  "hsl": {
    "h": 246.667,
    "s": 48.649,
    "l": 56.471
  },
  "oklch": {
    "l": 0.53534,
    "c": 0.16224,
    "h": 284.5
  },
  "luminance": 0.14214
}

Semantic roles & 50–950 ramp

primary

#665AC6

secondary

#CFD4A8

accent

#D850C9

background

#F9F8FD

surface

#F2F0FA

border

#CCCBD3

text

#0E0B14

muted

#7E7C83

Preview Lab

Preview with #665AC6

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

Preview Lab → · Contrast checker → · Palette generator →