#665CD1#665CD1

#665CD1 is a mid, vivid blue. Relative luminance 0.151; OKLCH L 54.7% C 0.174 H 282.8°. Best body text is #FFFFFF at 5.23:1 contrast (WCAG AA passes).

Color values

HEX	#665CD1
RGB	rgb(102, 92, 209)
HSL	hsl(245, 56%, 59%)
HSV	hsv(245, 56%, 82%)
CMYK	cmyk(51.2%, 56%, 0%, 18%)
CIE-LAB	lab(45.75, 35.22, -59.42)
CIE-LCH	lch(45.75, 69.08, 300.66°)
OKLab	oklab(54.66% 0.0387 -0.1699)
OKLCH	oklch(54.66% 0.174 282.8)
XYZ	xyz(20.8118, 15.0814, 62.1236)
Luminance	0.1508 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665CD1 #C7D15C

analogous

#5C8DD1 #665CD1 #A15CD1

triadic

#665CD1 #D1665C #5CD166

tetradic

#665CD1 #D15C8D #C7D15C #5CD1A1

square

#665CD1 #D15C8D #C7D15C #5CD1A1

split-complementary

#665CD1 #D1A15C #8DD15C

monochromatic

#30278B #4035BB #665CD1 #938CDE #C0BBEC

Accessibility & contrast

On white

5.23

#665CD1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.02

#665CD1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665CD1

5.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665CD1	#FFFFFF	#000000	##FFFFFF
##665CD1	1.00	5.23	4.02	5.23
#FFFFFF	5.23	1.00	21.00	1.00
#000000	4.02	21.00	1.00	21.00
##FFFFFF	5.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0770D5

Deuteranopia (green-blind)

#0068CF

Tritanopia (blue-blind)

#3C778D

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #665cd1;
/* rgb */ color: rgb(102, 92, 209);
/* oklch */ color: oklch(54.7% 0.174 282.8);

Tailwind

colors: {
  custom: {
    50: '#998ae0',
    500: '#665cd1',
    950: '#000000',
  },
}

SCSS

$custom: #665cd1;
$custom-light: #998ae0;
$custom-dark: #000000;

JSON

{
  "hex": "#665cd1",
  "rgb": {
    "r": 102,
    "g": 92,
    "b": 209
  },
  "hsl": {
    "h": 245.128,
    "s": 55.981,
    "l": 59.02
  },
  "oklch": {
    "l": 0.54664,
    "c": 0.17429,
    "h": 282.8
  },
  "luminance": 0.15083
}

Semantic roles & 50–950 ramp

primary

#665CD1

secondary

#D7DBAD

accent

#DF49D2

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0F0C15

muted

#7E7D83

Preview Lab

Preview with #665CD1

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

Preview Lab → · Contrast checker → · Palette generator →