#665BD9#665BD9

#665BD9 is a mid, vivid blue. Relative luminance 0.153; OKLCH L 55.1% C 0.186 H 282.3°. Best body text is #FFFFFF at 5.17:1 contrast (WCAG AA passes).

Color values

HEX	#665BD9
RGB	rgb(102, 91, 217)
HSL	hsl(245, 62%, 60%)
HSV	hsv(245, 58%, 85%)
CMYK	cmyk(53%, 58.1%, 0%, 14.9%)
CIE-LAB	lab(46.06, 38.27, -63.48)
CIE-LCH	lch(46.06, 74.13, 301.09°)
OKLab	oklab(55.07% 0.0398 -0.1819)
OKLCH	oklch(55.07% 0.186 282.3)
XYZ	xyz(21.7411, 15.3154, 67.4427)
Luminance	0.1532 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665BD9 #CED95B

analogous

#5B8FD9 #665BD9 #A55BD9

triadic

#665BD9 #D9665B #5BD966

tetradic

#665BD9 #D95B8F #CED95B #5BD9A5

square

#665BD9 #D95B8F #CED95B #5BD9A5

split-complementary

#665BD9 #D9A55B #8FD95B

monochromatic

#2D2397 #3C2EC8 #665BD9 #948DE5 #C3BEF0

Accessibility & contrast

On white

5.17

#665BD9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.06

#665BD9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665BD9

5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665BD9	#FFFFFF	#000000	##FFFFFF
##665BD9	1.00	5.17	4.06	5.17
#FFFFFF	5.17	1.00	21.00	1.00
#000000	4.06	21.00	1.00	21.00
##FFFFFF	5.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0071DD

Deuteranopia (green-blind)

#0069D6

Tritanopia (blue-blind)

#347891

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #665bd9;
/* rgb */ color: rgb(102, 91, 217);
/* oklch */ color: oklch(55.1% 0.186 282.3);

Tailwind

colors: {
  custom: {
    50: '#9b8ae6',
    500: '#665bd9',
    950: '#000000',
  },
}

SCSS

$custom: #665bd9;
$custom-light: #9b8ae6;
$custom-dark: #000000;

JSON

{
  "hex": "#665bd9",
  "rgb": {
    "r": 102,
    "g": 91,
    "b": 217
  },
  "hsl": {
    "h": 245.238,
    "s": 62.376,
    "l": 60.392
  },
  "oklch": {
    "l": 0.55074,
    "c": 0.18617,
    "h": 282.3
  },
  "luminance": 0.15317
}

Semantic roles & 50–950 ramp

primary

#665BD9

secondary

#DCE0B0

accent

#CA1BBB

background

#FAF8FE

surface

#F3F0FC

border

#CDCBD5

text

#0F0B16

muted

#7F7C84

Preview Lab

Preview with #665BD9

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

Preview Lab → · Contrast checker → · Palette generator →