#665DB9#665DB9

#665DB9 is a mid, vivid blue. Relative luminance 0.142; OKLCH L 53.2% C 0.140 H 285.0°. Best body text is #FFFFFF at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#665DB9
RGB	rgb(102, 93, 185)
HSL	hsl(246, 40%, 55%)
HSV	hsv(246, 50%, 73%)
CMYK	cmyk(44.9%, 49.7%, 0%, 27.5%)
CIE-LAB	lab(44.46, 27.34, -47.63)
CIE-LCH	lch(44.46, 54.91, 299.85°)
OKLab	oklab(53.21% 0.0363 -0.1352)
OKLCH	oklch(53.21% 0.14 285)
XYZ	xyz(18.1483, 14.1555, 47.6656)
Luminance	0.1416 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665DB9 #B0B95D

analogous

#5D82B9 #665DB9 #945DB9

triadic

#665DB9 #B9665D #5DB966

tetradic

#665DB9 #B95D82 #B0B95D #5DB994

square

#665DB9 #B95D82 #B0B95D #5DB994

split-complementary

#665DB9 #B9945D #82B95D

monochromatic

#352F6D #4A4197 #665DB9 #8E88CB #B7B2DE

Accessibility & contrast

On white

5.48

#665DB9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.83

#665DB9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665DB9

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665DB9	#FFFFFF	#000000	##FFFFFF
##665DB9	1.00	5.48	3.83	5.48
#FFFFFF	5.48	1.00	21.00	1.00
#000000	3.83	21.00	1.00	21.00
##FFFFFF	5.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#356CBC

Deuteranopia (green-blind)

#3266B7

Tritanopia (blue-blind)

#4C7082

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #665db9;
/* rgb */ color: rgb(102, 93, 185);
/* oklch */ color: oklch(53.2% 0.140 285.0);

Tailwind

colors: {
  custom: {
    50: '#968bce',
    500: '#665db9',
    950: '#000000',
  },
}

SCSS

$custom: #665db9;
$custom-light: #968bce;
$custom-dark: #000000;

JSON

{
  "hex": "#665db9",
  "rgb": {
    "r": 102,
    "g": 93,
    "b": 185
  },
  "hsl": {
    "h": 245.87,
    "s": 39.655,
    "l": 54.51
  },
  "oklch": {
    "l": 0.5321,
    "c": 0.14004,
    "h": 285
  },
  "luminance": 0.14156
}

Semantic roles & 50–950 ramp

primary

#665DB9

secondary

#C9CCA5

accent

#D058C4

background

#F9F8FC

surface

#F2F0F9

border

#CCCBD2

text

#0E0C14

muted

#7E7D82

Preview Lab

Preview with #665DB9

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

Preview Lab → · Contrast checker → · Palette generator →