#645BDC#645BDC

#645BDC is a mid, vivid blue. Relative luminance 0.154; OKLCH L 55.1% C 0.190 H 281.3°. Best body text is #FFFFFF at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#645BDC
RGB	rgb(100, 91, 220)
HSL	hsl(244, 65%, 61%)
HSV	hsv(244, 59%, 86%)
CMYK	cmyk(54.5%, 58.6%, 0%, 13.7%)
CIE-LAB	lab(46.12, 38.82, -65.10)
CIE-LCH	lch(46.12, 75.80, 300.81°)
OKLab	oklab(55.14% 0.0373 -0.1867)
OKLCH	oklch(55.14% 0.19 281.3)
XYZ	xyz(21.9109, 15.3574, 69.5060)
Luminance	0.1536 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645BDC #D3DC5B

analogous

#5B92DC #645BDC #A45BDC

triadic

#645BDC #DC645B #5BDC64

tetradic

#645BDC #DC5B92 #D3DC5B #5BDCA4

square

#645BDC #DC5B92 #D3DC5B #5BDCA4

split-complementary

#645BDC #DCA45B #92DC5B

monochromatic

#2A219B #372CCE #645BDC #948DE7 #C3C0F2

Accessibility & contrast

On white

5.16

#645BDC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.07

#645BDC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645BDC

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645BDC	#FFFFFF	#000000	##FFFFFF
##645BDC	1.00	5.16	4.07	5.16
#FFFFFF	5.16	1.00	21.00	1.00
#000000	4.07	21.00	1.00	21.00
##FFFFFF	5.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0072E0

Deuteranopia (green-blind)

#0069D9

Tritanopia (blue-blind)

#2B7A93

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #645bdc;
/* rgb */ color: rgb(100, 91, 220);
/* oklch */ color: oklch(55.1% 0.190 281.3);

Tailwind

colors: {
  custom: {
    50: '#9a8ae8',
    500: '#645bdc',
    950: '#000000',
  },
}

SCSS

$custom: #645bdc;
$custom-light: #9a8ae8;
$custom-dark: #000000;

JSON

{
  "hex": "#645bdc",
  "rgb": {
    "r": 100,
    "g": 91,
    "b": 220
  },
  "hsl": {
    "h": 244.186,
    "s": 64.824,
    "l": 60.98
  },
  "oklch": {
    "l": 0.55144,
    "c": 0.19038,
    "h": 281.3
  },
  "luminance": 0.15359
}

Semantic roles & 50–950 ramp

primary

#645BDC

secondary

#DEE2B1

accent

#CD19C0

background

#FAF8FE

surface

#F3F0FD

border

#CDCBD5

text

#0F0B16

muted

#7F7C84

Preview Lab

Preview with #645BDC

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

Preview Lab → · Contrast checker → · Palette generator →