#665DBE#665DBE

#665DBE is a mid, vivid blue. Relative luminance 0.144; OKLCH L 53.5% C 0.147 H 284.5°. Best body text is #FFFFFF at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#665DBE
RGB	rgb(102, 93, 190)
HSL	hsl(246, 43%, 55%)
HSV	hsv(246, 51%, 75%)
CMYK	cmyk(46.3%, 51.1%, 0%, 25.5%)
CIE-LAB	lab(44.76, 28.84, -50.05)
CIE-LCH	lch(44.76, 57.76, 299.95°)
OKLab	oklab(53.54% 0.0368 -0.1424)
OKLCH	oklch(53.54% 0.147 284.5)
XYZ	xyz(18.6854, 14.3703, 50.4944)
Luminance	0.1437 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665DBE #B5BE5D

analogous

#5D84BE #665DBE #965DBE

triadic

#665DBE #BE665D #5DBE66

tetradic

#665DBE #BE5D84 #B5BE5D #5DBE96

square

#665DBE #BE5D84 #B5BE5D #5DBE96

split-complementary

#665DBE #BE965D #84BE5D

monochromatic

#342E73 #48409E #665DBE #8F89D0 #B8B4E1

Accessibility & contrast

On white

5.42

#665DBE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.87

#665DBE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665DBE

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665DBE	#FFFFFF	#000000	##FFFFFF
##665DBE	1.00	5.42	3.87	5.42
#FFFFFF	5.42	1.00	21.00	1.00
#000000	3.87	21.00	1.00	21.00
##FFFFFF	5.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#306DC1

Deuteranopia (green-blind)

#2C67BC

Tritanopia (blue-blind)

#497285

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #665dbe;
/* rgb */ color: rgb(102, 93, 190);
/* oklch */ color: oklch(53.5% 0.147 284.5);

Tailwind

colors: {
  custom: {
    50: '#978bd2',
    500: '#665dbe',
    950: '#000000',
  },
}

SCSS

$custom: #665dbe;
$custom-light: #978bd2;
$custom-dark: #000000;

JSON

{
  "hex": "#665dbe",
  "rgb": {
    "r": 102,
    "g": 93,
    "b": 190
  },
  "hsl": {
    "h": 245.567,
    "s": 42.731,
    "l": 55.49
  },
  "oklch": {
    "l": 0.53536,
    "c": 0.14703,
    "h": 284.5
  },
  "luminance": 0.14371
}

Semantic roles & 50–950 ramp

primary

#665DBE

secondary

#CCD0A7

accent

#D355C7

background

#F9F8FD

surface

#F2F0FA

border

#CCCBD3

text

#0E0C14

muted

#7E7D83

Preview Lab

Preview with #665DBE

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

Preview Lab → · Contrast checker → · Palette generator →