#645FD5#645FD5

#645FD5 is a mid, vivid blue. Relative luminance 0.157; OKLCH L 55.3% C 0.176 H 280.9°. Best body text is #FFFFFF at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#645FD5
RGB	rgb(100, 95, 213)
HSL	hsl(243, 58%, 60%)
HSV	hsv(243, 55%, 84%)
CMYK	cmyk(53.1%, 55.4%, 0%, 16.5%)
CIE-LAB	lab(46.57, 34.25, -60.38)
CIE-LCH	lch(46.57, 69.42, 299.56°)
OKLab	oklab(55.33% 0.0332 -0.1728)
OKLCH	oklch(55.33% 0.176 280.9)
XYZ	xyz(21.3543, 15.6966, 64.8424)
Luminance	0.1570 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645FD5 #D0D55F

analogous

#5F95D5 #645FD5 #9F5FD5

triadic

#645FD5 #D5645F #5FD564

tetradic

#645FD5 #D55F95 #D0D55F #5FD59F

square

#645FD5 #D55F95 #D0D55F #5FD59F

split-complementary

#645FD5 #D59F5F #95D55F

monochromatic

#2B2793 #3933C3 #645FD5 #938FE2 #C2C0EE

Accessibility & contrast

On white

5.07

#645FD5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.14

#645FD5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645FD5

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645FD5	#FFFFFF	#000000	##FFFFFF
##645FD5	1.00	5.07	4.14	5.07
#FFFFFF	5.07	1.00	21.00	1.00
#000000	4.14	21.00	1.00	21.00
##FFFFFF	5.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C73D9

Deuteranopia (green-blind)

#006AD3

Tritanopia (blue-blind)

#327A91

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #645fd5;
/* rgb */ color: rgb(100, 95, 213);
/* oklch */ color: oklch(55.3% 0.176 280.9);

Tailwind

colors: {
  custom: {
    50: '#998ce3',
    500: '#645fd5',
    950: '#000000',
  },
}

SCSS

$custom: #645fd5;
$custom-light: #998ce3;
$custom-dark: #000000;

JSON

{
  "hex": "#645fd5",
  "rgb": {
    "r": 100,
    "g": 95,
    "b": 213
  },
  "hsl": {
    "h": 242.542,
    "s": 58.416,
    "l": 60.392
  },
  "oklch": {
    "l": 0.55326,
    "c": 0.17594,
    "h": 280.9
  },
  "luminance": 0.15698
}

Semantic roles & 50–950 ramp

primary

#645FD5

secondary

#DDDEB1

accent

#C61FBF

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0F0C15

muted

#7E7D84

Preview Lab

Preview with #645FD5

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

Preview Lab → · Contrast checker → · Palette generator →