#665BD0#665BD0

#665BD0 is a mid, vivid blue. Relative luminance 0.149; OKLCH L 54.4% C 0.174 H 283.2°. Best body text is #FFFFFF at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#665BD0
RGB	rgb(102, 91, 208)
HSL	hsl(246, 55%, 59%)
HSV	hsv(246, 56%, 82%)
CMYK	cmyk(51%, 56.2%, 0%, 18.4%)
CIE-LAB	lab(45.44, 35.52, -59.34)
CIE-LCH	lch(45.44, 69.16, 300.90°)
OKLab	oklab(54.42% 0.0398 -0.1697)
OKLCH	oklch(54.42% 0.174 283.2)
XYZ	xyz(20.6023, 14.8599, 61.4449)
Luminance	0.1486 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665BD0 #C5D05B

analogous

#5B8AD0 #665BD0 #A05BD0

triadic

#665BD0 #D0665B #5BD066

tetradic

#665BD0 #D05B8A #C5D05B #5BD0A0

square

#665BD0 #D05B8A #C5D05B #5BD0A0

split-complementary

#665BD0 #D0A05B #8AD05B

monochromatic

#312789 #4135B9 #665BD0 #928BDE #BFBAEB

Accessibility & contrast

On white

5.29

#665BD0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.97

#665BD0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665BD0

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665BD0	#FFFFFF	#000000	##FFFFFF
##665BD0	1.00	5.29	3.97	5.29
#FFFFFF	5.29	1.00	21.00	1.00
#000000	3.97	21.00	1.00	21.00
##FFFFFF	5.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#046FD4

Deuteranopia (green-blind)

#0068CE

Tritanopia (blue-blind)

#3D768D

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #665bd0;
/* rgb */ color: rgb(102, 91, 208);
/* oklch */ color: oklch(54.4% 0.174 283.2);

Tailwind

colors: {
  custom: {
    50: '#998adf',
    500: '#665bd0',
    950: '#000000',
  },
}

SCSS

$custom: #665bd0;
$custom-light: #998adf;
$custom-dark: #000000;

JSON

{
  "hex": "#665bd0",
  "rgb": {
    "r": 102,
    "g": 91,
    "b": 208
  },
  "hsl": {
    "h": 245.641,
    "s": 55.45,
    "l": 58.627
  },
  "oklch": {
    "l": 0.54417,
    "c": 0.1743,
    "h": 283.2
  },
  "luminance": 0.14861
}

Semantic roles & 50–950 ramp

primary

#665BD0

secondary

#D6DBAC

accent

#DF49D1

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0F0B15

muted

#7E7C83

Preview Lab

Preview with #665BD0

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

Preview Lab → · Contrast checker → · Palette generator →