#645FDA#645FDA

#645FDA is a mid, vivid blue. Relative luminance 0.160; OKLCH L 55.7% C 0.183 H 280.5°. Best body text is #FFFFFF at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#645FDA
RGB	rgb(100, 95, 218)
HSL	hsl(242, 62%, 61%)
HSV	hsv(242, 56%, 85%)
CMYK	cmyk(54.1%, 56.4%, 0%, 14.5%)
CIE-LAB	lab(46.91, 35.81, -62.68)
CIE-LCH	lch(46.91, 72.19, 299.74°)
OKLab	oklab(55.69% 0.0332 -0.1795)
OKLCH	oklch(55.69% 0.183 280.5)
XYZ	xyz(21.9987, 15.9543, 68.2364)
Luminance	0.1596 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645FDA #D5DA5F

analogous

#5F98DA #645FDA #A25FDA

triadic

#645FDA #DA645F #5FDA64

tetradic

#645FDA #DA5F98 #D5DA5F #5FDAA2

square

#645FDA #DA5F98 #D5DA5F #5FDAA2

split-complementary

#645FDA #DAA25F #98DA5F

monochromatic

#29249B #362FCD #645FDA #9491E5 #C4C2F1

Accessibility & contrast

On white

5.01

#645FDA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.19

#645FDA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645FDA

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645FDA	#FFFFFF	#000000	##FFFFFF
##645FDA	1.00	5.01	4.19	5.01
#FFFFFF	5.01	1.00	21.00	1.00
#000000	4.19	21.00	1.00	21.00
##FFFFFF	5.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0074DE

Deuteranopia (green-blind)

#006BD7

Tritanopia (blue-blind)

#2D7C93

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #645fda;
/* rgb */ color: rgb(100, 95, 218);
/* oklch */ color: oklch(55.7% 0.183 280.5);

Tailwind

colors: {
  custom: {
    50: '#998ce6',
    500: '#645fda',
    950: '#000000',
  },
}

SCSS

$custom: #645fda;
$custom-light: #998ce6;
$custom-dark: #000000;

JSON

{
  "hex": "#645fda",
  "rgb": {
    "r": 100,
    "g": 95,
    "b": 218
  },
  "hsl": {
    "h": 242.439,
    "s": 62.437,
    "l": 61.373
  },
  "oklch": {
    "l": 0.55687,
    "c": 0.18259,
    "h": 280.5
  },
  "luminance": 0.15956
}

Semantic roles & 50–950 ramp

primary

#645FDA

secondary

#E0E1B3

accent

#CA1BC3

background

#FAF8FE

surface

#F3F0FC

border

#CDCBD5

text

#0F0C16

muted

#7F7D84

Preview Lab

Preview with #645FDA

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

Preview Lab → · Contrast checker → · Palette generator →