#645DF1#645DF1

#645DF1 is a mid, highly saturated blue. Relative luminance 0.169; OKLCH L 57.1% C 0.215 H 279.2°. Best body text is #FFFFFF at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#645DF1
RGB	rgb(100, 93, 241)
HSL	hsl(243, 84%, 65%)
HSV	hsv(243, 61%, 95%)
CMYK	cmyk(58.5%, 61.4%, 0%, 5.5%)
CIE-LAB	lab(48.12, 44.17, -73.71)
CIE-LCH	lch(48.12, 85.93, 300.93°)
OKLab	oklab(57.1% 0.0345 -0.212)
OKLCH	oklch(57.1% 0.215 279.2)
XYZ	xyz(25.0420, 16.8871, 85.1420)
Luminance	0.1689 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645DF1 #EAF15D

analogous

#5DA0F1 #645DF1 #AE5DF1

triadic

#645DF1 #F1645D #5DF164

tetradic

#645DF1 #F15DA0 #EAF15D #5DF1AE

square

#645DF1 #F15DA0 #EAF15D #5DF1AE

split-complementary

#645DF1 #F1AE5D #A0F15D

monochromatic

#1911C3 #2E25EC #645DF1 #9A95F6 #D0CEFB

Accessibility & contrast

On white

4.80

#645DF1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.38

#645DF1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645DF1

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645DF1	#FFFFFF	#000000	##FFFFFF
##645DF1	1.00	4.80	4.38	4.80
#FFFFFF	4.80	1.00	21.00	1.00
#000000	4.38	21.00	1.00	21.00
##FFFFFF	4.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0078F6

Deuteranopia (green-blind)

#006CEE

Tritanopia (blue-blind)

#00829E

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #645df1;
/* rgb */ color: rgb(100, 93, 241);
/* oklch */ color: oklch(57.1% 0.215 279.2);

Tailwind

colors: {
  custom: {
    50: '#9d8bf7',
    500: '#645df1',
    950: '#000000',
  },
}

SCSS

$custom: #645df1;
$custom-light: #9d8bf7;
$custom-dark: #000000;

JSON

{
  "hex": "#645df1",
  "rgb": {
    "r": 100,
    "g": 93,
    "b": 241
  },
  "hsl": {
    "h": 242.838,
    "s": 84.091,
    "l": 65.49
  },
  "oklch": {
    "l": 0.57097,
    "c": 0.21478,
    "h": 279.2
  },
  "luminance": 0.16889
}

Semantic roles & 50–950 ramp

primary

#645DF1

secondary

#EBEEBC

accent

#E105D6

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#100C17

muted

#7F7D85

Preview Lab

Preview with #645DF1

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

Preview Lab → · Contrast checker → · Palette generator →