#645FDF#645FDF

#645FDF is a mid, vivid blue. Relative luminance 0.162; OKLCH L 56.1% C 0.189 H 280.1°. Best body text is #FFFFFF at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#645FDF
RGB	rgb(100, 95, 223)
HSL	hsl(242, 67%, 62%)
HSV	hsv(242, 57%, 87%)
CMYK	cmyk(55.2%, 57.4%, 0%, 12.5%)
CIE-LAB	lab(47.26, 37.37, -64.96)
CIE-LCH	lch(47.26, 74.94, 299.91°)
OKLab	oklab(56.05% 0.0332 -0.1862)
OKLCH	oklch(56.05% 0.189 280.1)
XYZ	xyz(22.6629, 16.2200, 71.7343)
Luminance	0.1622 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645FDF #DADF5F

analogous

#5F9ADF #645FDF #A45FDF

triadic

#645FDF #DF645F #5FDF64

tetradic

#645FDF #DF5F9A #DADF5F #5FDFA4

square

#645FDF #DF5F9A #DADF5F #5FDFA4

split-complementary

#645FDF #DFA45F #9ADF5F

monochromatic

#2621A3 #332CD5 #645FDF #9592E9 #C7C5F3

Accessibility & contrast

On white

4.95

#645FDF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.24

#645FDF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645FDF

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645FDF	#FFFFFF	#000000	##FFFFFF
##645FDF	1.00	4.95	4.24	4.95
#FFFFFF	4.95	1.00	21.00	1.00
#000000	4.24	21.00	1.00	21.00
##FFFFFF	4.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0075E3

Deuteranopia (green-blind)

#006BDC

Tritanopia (blue-blind)

#267D96

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #645fdf;
/* rgb */ color: rgb(100, 95, 223);
/* oklch */ color: oklch(56.1% 0.189 280.1);

Tailwind

colors: {
  custom: {
    50: '#9a8cea',
    500: '#645fdf',
    950: '#000000',
  },
}

SCSS

$custom: #645fdf;
$custom-light: #9a8cea;
$custom-dark: #000000;

JSON

{
  "hex": "#645fdf",
  "rgb": {
    "r": 100,
    "g": 95,
    "b": 223
  },
  "hsl": {
    "h": 242.344,
    "s": 66.667,
    "l": 62.353
  },
  "oklch": {
    "l": 0.56054,
    "c": 0.18918,
    "h": 280.1
  },
  "luminance": 0.16221
}

Semantic roles & 50–950 ramp

primary

#645FDF

secondary

#E2E4B6

accent

#CF17C7

background

#FAF8FE

surface

#F3F0FD

border

#CDCBD5

text

#0F0C16

muted

#7F7D84

Preview Lab

Preview with #645FDF

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

Preview Lab → · Contrast checker → · Palette generator →