#645FD9#645FD9

#645FD9 is a mid, vivid blue. Relative luminance 0.159; OKLCH L 55.6% C 0.181 H 280.6°. Best body text is #FFFFFF at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#645FD9
RGB	rgb(100, 95, 217)
HSL	hsl(242, 62%, 61%)
HSV	hsv(242, 56%, 85%)
CMYK	cmyk(53.9%, 56.2%, 0%, 14.9%)
CIE-LAB	lab(46.85, 35.49, -62.22)
CIE-LCH	lch(46.85, 71.63, 299.70°)
OKLab	oklab(55.61% 0.0332 -0.1782)
OKLCH	oklch(55.61% 0.181 280.6)
XYZ	xyz(21.8682, 15.9021, 67.5493)
Luminance	0.1590 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645FD9 #D4D95F

analogous

#5F97D9 #645FD9 #A15FD9

triadic

#645FD9 #D9645F #5FD964

tetradic

#645FD9 #D95F97 #D4D95F #5FD9A1

square

#645FD9 #D95F97 #D4D95F #5FD9A1

split-complementary

#645FD9 #D9A15F #97D95F

monochromatic

#292499 #3630CB #645FD9 #9490E5 #C4C2F0

Accessibility & contrast

On white

5.02

#645FD9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.18

#645FD9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645FD9

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645FD9	#FFFFFF	#000000	##FFFFFF
##645FD9	1.00	5.02	4.18	5.02
#FFFFFF	5.02	1.00	21.00	1.00
#000000	4.18	21.00	1.00	21.00
##FFFFFF	5.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0074DD

Deuteranopia (green-blind)

#006AD6

Tritanopia (blue-blind)

#2E7B93

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #645fd9;
/* rgb */ color: rgb(100, 95, 217);
/* oklch */ color: oklch(55.6% 0.181 280.6);

Tailwind

colors: {
  custom: {
    50: '#998ce5',
    500: '#645fd9',
    950: '#000000',
  },
}

SCSS

$custom: #645fd9;
$custom-light: #998ce5;
$custom-dark: #000000;

JSON

{
  "hex": "#645fd9",
  "rgb": {
    "r": 100,
    "g": 95,
    "b": 217
  },
  "hsl": {
    "h": 242.459,
    "s": 61.616,
    "l": 61.176
  },
  "oklch": {
    "l": 0.55614,
    "c": 0.18127,
    "h": 280.6
  },
  "luminance": 0.15903
}

Semantic roles & 50–950 ramp

primary

#645FD9

secondary

#DFE1B3

accent

#C91CC2

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0F0C16

muted

#7E7D84

Preview Lab

Preview with #645FD9

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

Preview Lab → · Contrast checker → · Palette generator →