#645FD2#645FD2

#645FD2 is a mid, vivid blue. Relative luminance 0.155; OKLCH L 55.1% C 0.172 H 281.1°. Best body text is #FFFFFF at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#645FD2
RGB	rgb(100, 95, 210)
HSL	hsl(243, 56%, 60%)
HSV	hsv(243, 55%, 82%)
CMYK	cmyk(52.4%, 54.8%, 0%, 17.6%)
CIE-LAB	lab(46.37, 33.31, -58.99)
CIE-LCH	lch(46.37, 67.75, 299.45°)
OKLab	oklab(55.11% 0.0331 -0.1687)
OKLCH	oklch(55.11% 0.172 281.1)
XYZ	xyz(20.9770, 15.5457, 62.8555)
Luminance	0.1555 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645FD2 #CDD25F

analogous

#5F93D2 #645FD2 #9E5FD2

triadic

#645FD2 #D2645F #5FD264

tetradic

#645FD2 #D25F93 #CDD25F #5FD29E

square

#645FD2 #D25F93 #CDD25F #5FD29E

split-complementary

#645FD2 #D29E5F #93D25F

monochromatic

#2D288F #3B36BE #645FD2 #928FDF #C1BFED

Accessibility & contrast

On white

5.11

#645FD2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.11

#645FD2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645FD2

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645FD2	#FFFFFF	#000000	##FFFFFF
##645FD2	1.00	5.11	4.11	5.11
#FFFFFF	5.11	1.00	21.00	1.00
#000000	4.11	21.00	1.00	21.00
##FFFFFF	5.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1672D6

Deuteranopia (green-blind)

#006AD0

Tritanopia (blue-blind)

#35798F

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #645fd2;
/* rgb */ color: rgb(100, 95, 210);
/* oklch */ color: oklch(55.1% 0.172 281.1);

Tailwind

colors: {
  custom: {
    50: '#988ce0',
    500: '#645fd2',
    950: '#000000',
  },
}

SCSS

$custom: #645fd2;
$custom-light: #988ce0;
$custom-dark: #000000;

JSON

{
  "hex": "#645fd2",
  "rgb": {
    "r": 100,
    "g": 95,
    "b": 210
  },
  "hsl": {
    "h": 242.609,
    "s": 56.098,
    "l": 59.804
  },
  "oklch": {
    "l": 0.55112,
    "c": 0.17191,
    "h": 281.1
  },
  "luminance": 0.15547
}

Semantic roles & 50–950 ramp

primary

#645FD2

secondary

#DBDDB0

accent

#DF48D9

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0C15

muted

#7E7D83

Preview Lab

Preview with #645FD2

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

Preview Lab → · Contrast checker → · Palette generator →