#645ADB#645ADB

#645ADB is a mid, vivid blue. Relative luminance 0.151; OKLCH L 54.9% C 0.190 H 281.6°. Best body text is #FFFFFF at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#645ADB
RGB	rgb(100, 90, 219)
HSL	hsl(245, 64%, 61%)
HSV	hsv(245, 59%, 86%)
CMYK	cmyk(54.3%, 58.9%, 0%, 14.1%)
CIE-LAB	lab(45.82, 39.11, -65.02)
CIE-LCH	lch(45.82, 75.88, 301.02°)
OKLab	oklab(54.9% 0.0383 -0.1865)
OKLCH	oklch(54.9% 0.19 281.6)
XYZ	xyz(21.6939, 15.1348, 68.7823)
Luminance	0.1514 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645ADB #D1DB5A

analogous

#5A90DB #645ADB #A45ADB

triadic

#645ADB #DB645A #5ADB64

tetradic

#645ADB #DB5A90 #D1DB5A #5ADBA4

square

#645ADB #DB5A90 #D1DB5A #5ADBA4

split-complementary

#645ADB #DBA45A #90DB5A

monochromatic

#2B2199 #392CCB #645ADB #938CE6 #C2BEF1

Accessibility & contrast

On white

5.21

#645ADB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.03

#645ADB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645ADB

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645ADB	#FFFFFF	#000000	##FFFFFF
##645ADB	1.00	5.21	4.03	5.21
#FFFFFF	5.21	1.00	21.00	1.00
#000000	4.03	21.00	1.00	21.00
##FFFFFF	5.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0071DF

Deuteranopia (green-blind)

#0068D8

Tritanopia (blue-blind)

#2C7992

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #645adb;
/* rgb */ color: rgb(100, 90, 219);
/* oklch */ color: oklch(54.9% 0.190 281.6);

Tailwind

colors: {
  custom: {
    50: '#9a89e7',
    500: '#645adb',
    950: '#000000',
  },
}

SCSS

$custom: #645adb;
$custom-light: #9a89e7;
$custom-dark: #000000;

JSON

{
  "hex": "#645adb",
  "rgb": {
    "r": 100,
    "g": 90,
    "b": 219
  },
  "hsl": {
    "h": 244.651,
    "s": 64.179,
    "l": 60.588
  },
  "oklch": {
    "l": 0.54899,
    "c": 0.19036,
    "h": 281.6
  },
  "luminance": 0.15136
}

Semantic roles & 50–950 ramp

primary

#645ADB

secondary

#DDE1B0

accent

#CC1ABE

background

#FAF8FE

surface

#F3F0FD

border

#CDCBD5

text

#0F0B16

muted

#7F7C84

Preview Lab

Preview with #645ADB

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

Preview Lab → · Contrast checker → · Palette generator →