#665CDF#665CDF

#665CDF is a mid, vivid blue. Relative luminance 0.158; OKLCH L 55.7% C 0.193 H 281.6°. Best body text is #FFFFFF at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#665CDF
RGB	rgb(102, 92, 223)
HSL	hsl(245, 67%, 62%)
HSV	hsv(245, 59%, 87%)
CMYK	cmyk(54.3%, 58.7%, 0%, 12.5%)
CIE-LAB	lab(46.72, 39.52, -65.83)
CIE-LCH	lch(46.72, 76.78, 300.98°)
OKLab	oklab(55.69% 0.0386 -0.1888)
OKLCH	oklch(55.69% 0.193 281.6)
XYZ	xyz(22.6218, 15.8054, 71.6564)
Luminance	0.1581 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665CDF #D5DF5C

analogous

#5C94DF #665CDF #A85CDF

triadic

#665CDF #DF665C #5CDF66

tetradic

#665CDF #DF5C94 #D5DF5C #5CDFA8

square

#665CDF #DF5C94 #D5DF5C #5CDFA8

split-complementary

#665CDF #DFA85C #94DF5C

monochromatic

#2920A1 #372AD4 #665CDF #968FE9 #C6C2F3

Accessibility & contrast

On white

5.05

#665CDF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.16

#665CDF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665CDF

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665CDF	#FFFFFF	#000000	##FFFFFF
##665CDF	1.00	5.05	4.16	5.05
#FFFFFF	5.05	1.00	21.00	1.00
#000000	4.16	21.00	1.00	21.00
##FFFFFF	5.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0073E3

Deuteranopia (green-blind)

#006ADC

Tritanopia (blue-blind)

#2D7B95

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #665cdf;
/* rgb */ color: rgb(102, 92, 223);
/* oklch */ color: oklch(55.7% 0.193 281.6);

Tailwind

colors: {
  custom: {
    50: '#9b8aea',
    500: '#665cdf',
    950: '#000000',
  },
}

SCSS

$custom: #665cdf;
$custom-light: #9b8aea;
$custom-dark: #000000;

JSON

{
  "hex": "#665cdf",
  "rgb": {
    "r": 102,
    "g": 92,
    "b": 223
  },
  "hsl": {
    "h": 244.58,
    "s": 67.179,
    "l": 61.765
  },
  "oklch": {
    "l": 0.55691,
    "c": 0.19269,
    "h": 281.6
  },
  "luminance": 0.15807
}

Semantic roles & 50–950 ramp

primary

#665CDF

secondary

#E0E4B3

accent

#CF16C1

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C16

muted

#7F7D84

Preview Lab

Preview with #665CDF

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

Preview Lab → · Contrast checker → · Palette generator →