#665CC4#665CC4

#665CC4 is a mid, vivid blue. Relative luminance 0.145; OKLCH L 53.8% C 0.157 H 284.2°. Best body text is #FFFFFF at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#665CC4
RGB	rgb(102, 92, 196)
HSL	hsl(246, 47%, 56%)
HSV	hsv(246, 53%, 77%)
CMYK	cmyk(48%, 53.1%, 0%, 23.1%)
CIE-LAB	lab(44.89, 31.26, -53.32)
CIE-LCH	lch(44.89, 61.80, 300.38°)
OKLab	oklab(53.76% 0.0383 -0.152)
OKLCH	oklch(53.76% 0.157 284.2)
XYZ	xyz(19.2675, 14.4637, 53.9904)
Luminance	0.1447 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665CC4 #BAC45C

analogous

#5C86C4 #665CC4 #9A5CC4

triadic

#665CC4 #C4665C #5CC466

tetradic

#665CC4 #C45C86 #BAC45C #5CC49A

square

#665CC4 #C45C86 #BAC45C #5CC49A

split-complementary

#665CC4 #C49A5C #86C45C

monochromatic

#332C7A #463CA7 #665CC4 #9089D4 #BAB6E5

Accessibility & contrast

On white

5.39

#665CC4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.89

#665CC4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665CC4

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665CC4	#FFFFFF	#000000	##FFFFFF
##665CC4	1.00	5.39	3.89	5.39
#FFFFFF	5.39	1.00	21.00	1.00
#000000	3.89	21.00	1.00	21.00
##FFFFFF	5.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#266DC8

Deuteranopia (green-blind)

#2167C2

Tritanopia (blue-blind)

#457387

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #665cc4;
/* rgb */ color: rgb(102, 92, 196);
/* oklch */ color: oklch(53.8% 0.157 284.2);

Tailwind

colors: {
  custom: {
    50: '#988ad6',
    500: '#665cc4',
    950: '#000000',
  },
}

SCSS

$custom: #665cc4;
$custom-light: #988ad6;
$custom-dark: #000000;

JSON

{
  "hex": "#665cc4",
  "rgb": {
    "r": 102,
    "g": 92,
    "b": 196
  },
  "hsl": {
    "h": 245.769,
    "s": 46.847,
    "l": 56.471
  },
  "oklch": {
    "l": 0.53755,
    "c": 0.15673,
    "h": 284.2
  },
  "luminance": 0.14465
}

Semantic roles & 50–950 ramp

primary

#665CC4

secondary

#CFD3A9

accent

#D651CA

background

#F9F8FD

surface

#F2F0FA

border

#CCCBD3

text

#0E0B14

muted

#7E7C83

Preview Lab

Preview with #665CC4

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

Preview Lab → · Contrast checker → · Palette generator →