#645FDC#645FDC

#645FDC is a mid, vivid blue. Relative luminance 0.161; OKLCH L 55.8% C 0.185 H 280.3°. Best body text is #FFFFFF at 4.99:1 contrast (WCAG AA passes).

Color values

HEX	#645FDC
RGB	rgb(100, 95, 220)
HSL	hsl(242, 64%, 62%)
HSV	hsv(242, 57%, 86%)
CMYK	cmyk(54.5%, 56.8%, 0%, 13.7%)
CIE-LAB	lab(47.05, 36.43, -63.59)
CIE-LCH	lch(47.05, 73.29, 299.81°)
OKLab	oklab(55.83% 0.0333 -0.1822)
OKLCH	oklch(55.83% 0.185 280.3)
XYZ	xyz(22.2620, 16.0596, 69.6230)
Luminance	0.1606 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645FDC #D7DC5F

analogous

#5F99DC #645FDC #A35FDC

triadic

#645FDC #DC645F #5FDC64

tetradic

#645FDC #DC5F99 #D7DC5F #5FDCA3

square

#645FDC #DC5F99 #D7DC5F #5FDCA3

split-complementary

#645FDC #DCA35F #99DC5F

monochromatic

#28239E #342ED0 #645FDC #9591E7 #C5C3F2

Accessibility & contrast

On white

4.99

#645FDC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.21

#645FDC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645FDC

4.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645FDC	#FFFFFF	#000000	##FFFFFF
##645FDC	1.00	4.99	4.21	4.99
#FFFFFF	4.99	1.00	21.00	1.00
#000000	4.21	21.00	1.00	21.00
##FFFFFF	4.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0074E0

Deuteranopia (green-blind)

#006BD9

Tritanopia (blue-blind)

#2A7C94

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #645fdc;
/* rgb */ color: rgb(100, 95, 220);
/* oklch */ color: oklch(55.8% 0.185 280.3);

Tailwind

colors: {
  custom: {
    50: '#9a8ce8',
    500: '#645fdc',
    950: '#000000',
  },
}

SCSS

$custom: #645fdc;
$custom-light: #9a8ce8;
$custom-dark: #000000;

JSON

{
  "hex": "#645fdc",
  "rgb": {
    "r": 100,
    "g": 95,
    "b": 220
  },
  "hsl": {
    "h": 242.4,
    "s": 64.103,
    "l": 61.765
  },
  "oklch": {
    "l": 0.55833,
    "c": 0.18524,
    "h": 280.3
  },
  "luminance": 0.16061
}

Semantic roles & 50–950 ramp

primary

#645FDC

secondary

#E1E3B4

accent

#CC1AC5

background

#FAF8FE

surface

#F3F0FD

border

#CDCBD5

text

#0F0C16

muted

#7F7D84

Preview Lab

Preview with #645FDC

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

Preview Lab → · Contrast checker → · Palette generator →