#665CDB#665CDB

#665CDB is a mid, vivid blue. Relative luminance 0.156; OKLCH L 55.4% C 0.187 H 281.9°. Best body text is #FFFFFF at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#665CDB
RGB	rgb(102, 92, 219)
HSL	hsl(245, 64%, 61%)
HSV	hsv(245, 58%, 86%)
CMYK	cmyk(53.4%, 58%, 0%, 14.1%)
CIE-LAB	lab(46.43, 38.29, -64.02)
CIE-LCH	lch(46.43, 74.60, 300.89°)
OKLab	oklab(55.39% 0.0387 -0.1834)
OKLCH	oklch(55.39% 0.187 281.9)
XYZ	xyz(22.0889, 15.5922, 68.8498)
Luminance	0.1559 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665CDB #D1DB5C

analogous

#5C91DB #665CDB #A55CDB

triadic

#665CDB #DB665C #5CDB66

tetradic

#665CDB #DB5C91 #D1DB5C #5CDBA5

square

#665CDB #DB5C91 #D1DB5C #5CDBA5

split-complementary

#665CDB #DBA55C #91DB5C

monochromatic

#2C229A #3A2DCD #665CDB #958EE6 #C4C0F1

Accessibility & contrast

On white

5.10

#665CDB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.12

#665CDB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665CDB

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665CDB	#FFFFFF	#000000	##FFFFFF
##665CDB	1.00	5.10	4.12	5.10
#FFFFFF	5.10	1.00	21.00	1.00
#000000	4.12	21.00	1.00	21.00
##FFFFFF	5.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0072DF

Deuteranopia (green-blind)

#006AD8

Tritanopia (blue-blind)

#327A93

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #665cdb;
/* rgb */ color: rgb(102, 92, 219);
/* oklch */ color: oklch(55.4% 0.187 281.9);

Tailwind

colors: {
  custom: {
    50: '#9b8ae7',
    500: '#665cdb',
    950: '#000000',
  },
}

SCSS

$custom: #665cdb;
$custom-light: #9b8ae7;
$custom-dark: #000000;

JSON

{
  "hex": "#665cdb",
  "rgb": {
    "r": 102,
    "g": 92,
    "b": 219
  },
  "hsl": {
    "h": 244.724,
    "s": 63.819,
    "l": 60.98
  },
  "oklch": {
    "l": 0.55393,
    "c": 0.18748,
    "h": 281.9
  },
  "luminance": 0.15594
}

Semantic roles & 50–950 ramp

primary

#665CDB

secondary

#DEE1B1

accent

#CC1ABE

background

#FAF8FE

surface

#F3F0FD

border

#CDCBD5

text

#0F0C16

muted

#7F7D84

Preview Lab

Preview with #665CDB

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

Preview Lab → · Contrast checker → · Palette generator →