#665DCE#665DCE

#665DCE is a mid, vivid blue. Relative luminance 0.151; OKLCH L 54.6% C 0.169 H 282.9°. Best body text is #FFFFFF at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#665DCE
RGB	rgb(102, 93, 206)
HSL	hsl(245, 54%, 59%)
HSV	hsv(245, 55%, 81%)
CMYK	cmyk(50.5%, 54.9%, 0%, 19.2%)
CIE-LAB	lab(45.78, 33.70, -57.64)
CIE-LCH	lch(45.78, 66.77, 300.31°)
OKLab	oklab(54.63% 0.0376 -0.1647)
OKLCH	oklch(54.63% 0.169 282.9)
XYZ	xyz(20.5310, 15.1086, 60.2150)
Luminance	0.1511 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665DCE #C5CE5D

analogous

#5D8CCE #665DCE #9E5DCE

triadic

#665DCE #CE665D #5DCE66

tetradic

#665DCE #CE5D8C #C5CE5D #5DCE9E

square

#665DCE #CE5D8C #C5CE5D #5DCE9E

split-complementary

#665DCE #CE9E5D #8CCE5D

monochromatic

#312988 #4137B7 #665DCE #928CDC #BFBBEA

Accessibility & contrast

On white

5.22

#665DCE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.02

#665DCE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665DCE

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665DCE	#FFFFFF	#000000	##FFFFFF
##665DCE	1.00	5.22	4.02	5.22
#FFFFFF	5.22	1.00	21.00	1.00
#000000	4.02	21.00	1.00	21.00
##FFFFFF	5.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1870D2

Deuteranopia (green-blind)

#0869CC

Tritanopia (blue-blind)

#3E768C

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #665dce;
/* rgb */ color: rgb(102, 93, 206);
/* oklch */ color: oklch(54.6% 0.169 282.9);

Tailwind

colors: {
  custom: {
    50: '#998bde',
    500: '#665dce',
    950: '#000000',
  },
}

SCSS

$custom: #665dce;
$custom-light: #998bde;
$custom-dark: #000000;

JSON

{
  "hex": "#665dce",
  "rgb": {
    "r": 102,
    "g": 93,
    "b": 206
  },
  "hsl": {
    "h": 244.779,
    "s": 53.555,
    "l": 58.627
  },
  "oklch": {
    "l": 0.54628,
    "c": 0.16892,
    "h": 282.9
  },
  "luminance": 0.1511
}

Semantic roles & 50–950 ramp

primary

#665DCE

secondary

#D6DAAD

accent

#DD4BD1

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0C15

muted

#7E7D83

Preview Lab

Preview with #665DCE

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

Preview Lab → · Contrast checker → · Palette generator →