#645AEE#645AEE

#645AEE is a mid, highly saturated blue. Relative luminance 0.162; OKLCH L 56.4% C 0.215 H 280.0°. Best body text is #FFFFFF at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#645AEE
RGB	rgb(100, 90, 238)
HSL	hsl(244, 81%, 64%)
HSV	hsv(244, 62%, 93%)
CMYK	cmyk(58%, 62.2%, 0%, 6.7%)
CIE-LAB	lab(47.23, 44.98, -73.48)
CIE-LCH	lch(47.23, 86.15, 301.48°)
OKLab	oklab(56.37% 0.0373 -0.2113)
OKLCH	oklch(56.37% 0.215 280)
XYZ	xyz(24.3394, 16.1930, 82.7153)
Luminance	0.1620 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645AEE #E4EE5A

analogous

#5A9AEE #645AEE #AE5AEE

triadic

#645AEE #EE645A #5AEE64

tetradic

#645AEE #EE5A9A #E4EE5A #5AEEAE

square

#645AEE #EE5A9A #E4EE5A #5AEEAE

split-complementary

#645AEE #EEAE5A #9AEE5A

monochromatic

#1F13BA #3023E8 #645AEE #9891F4 #CCC9F9

Accessibility & contrast

On white

4.95

#645AEE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.24

#645AEE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645AEE

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645AEE	#FFFFFF	#000000	##FFFFFF
##645AEE	1.00	4.95	4.24	4.95
#FFFFFF	4.95	1.00	21.00	1.00
#000000	4.24	21.00	1.00	21.00
##FFFFFF	4.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0076F3

Deuteranopia (green-blind)

#006AEB

Tritanopia (blue-blind)

#007F9C

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #645aee;
/* rgb */ color: rgb(100, 90, 238);
/* oklch */ color: oklch(56.4% 0.215 280.0);

Tailwind

colors: {
  custom: {
    50: '#9d89f5',
    500: '#645aee',
    950: '#000000',
  },
}

SCSS

$custom: #645aee;
$custom-light: #9d89f5;
$custom-dark: #000000;

JSON

{
  "hex": "#645aee",
  "rgb": {
    "r": 100,
    "g": 90,
    "b": 238
  },
  "hsl": {
    "h": 244.054,
    "s": 81.319,
    "l": 64.314
  },
  "oklch": {
    "l": 0.56374,
    "c": 0.21459,
    "h": 280
  },
  "luminance": 0.16195
}

Semantic roles & 50–950 ramp

primary

#645AEE

secondary

#E8ECB8

accent

#DE08CF

background

#FAF8FF

surface

#F4F0FE

border

#CECBD6

text

#100B17

muted

#7F7C85

Preview Lab

Preview with #645AEE

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

Preview Lab → · Contrast checker → · Palette generator →