#645FD7#645FD7

#645FD7 is a mid, vivid blue. Relative luminance 0.158; OKLCH L 55.5% C 0.179 H 280.7°. Best body text is #FFFFFF at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#645FD7
RGB	rgb(100, 95, 215)
HSL	hsl(243, 60%, 61%)
HSV	hsv(243, 56%, 84%)
CMYK	cmyk(53.5%, 55.8%, 0%, 15.7%)
CIE-LAB	lab(46.71, 34.87, -61.30)
CIE-LCH	lch(46.71, 70.53, 299.63°)
OKLab	oklab(55.47% 0.0332 -0.1755)
OKLCH	oklch(55.47% 0.179 280.7)
XYZ	xyz(21.6097, 15.7987, 66.1876)
Luminance	0.1580 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645FD7 #D2D75F

analogous

#5F96D7 #645FD7 #A05FD7

triadic

#645FD7 #D7645F #5FD764

tetradic

#645FD7 #D75F96 #D2D75F #5FD7A0

square

#645FD7 #D75F96 #D2D75F #5FD7A0

split-complementary

#645FD7 #D7A05F #96D75F

monochromatic

#2A2696 #3832C7 #645FD7 #9390E3 #C3C1EF

Accessibility & contrast

On white

5.05

#645FD7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.16

#645FD7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645FD7

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645FD7	#FFFFFF	#000000	##FFFFFF
##645FD7	1.00	5.05	4.16	5.05
#FFFFFF	5.05	1.00	21.00	1.00
#000000	4.16	21.00	1.00	21.00
##FFFFFF	5.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0273DB

Deuteranopia (green-blind)

#006AD4

Tritanopia (blue-blind)

#307B92

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #645fd7;
/* rgb */ color: rgb(100, 95, 215);
/* oklch */ color: oklch(55.5% 0.179 280.7);

Tailwind

colors: {
  custom: {
    50: '#998ce4',
    500: '#645fd7',
    950: '#000000',
  },
}

SCSS

$custom: #645fd7;
$custom-light: #998ce4;
$custom-dark: #000000;

JSON

{
  "hex": "#645fd7",
  "rgb": {
    "r": 100,
    "g": 95,
    "b": 215
  },
  "hsl": {
    "h": 242.5,
    "s": 60,
    "l": 60.784
  },
  "oklch": {
    "l": 0.5547,
    "c": 0.1786,
    "h": 280.7
  },
  "luminance": 0.158
}

Semantic roles & 50–950 ramp

primary

#645FD7

secondary

#DEE0B2

accent

#C81EC1

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0F0C16

muted

#7E7D84

Preview Lab

Preview with #645FD7

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

Preview Lab → · Contrast checker → · Palette generator →