#645DEA#645DEA

#645DEA is a mid, highly saturated blue. Relative luminance 0.165; OKLCH L 56.5% C 0.206 H 279.7°. Best body text is #FFFFFF at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#645DEA
RGB	rgb(100, 93, 234)
HSL	hsl(243, 77%, 64%)
HSV	hsv(243, 60%, 92%)
CMYK	cmyk(57.3%, 60.3%, 0%, 8.2%)
CIE-LAB	lab(47.59, 41.99, -70.63)
CIE-LCH	lch(47.59, 82.17, 300.73°)
OKLab	oklab(56.55% 0.0349 -0.2029)
OKLCH	oklch(56.55% 0.206 279.7)
XYZ	xyz(24.0165, 16.4769, 79.7408)
Luminance	0.1648 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645DEA #E3EA5D

analogous

#5D9DEA #645DEA #AB5DEA

triadic

#645DEA #EA645D #5DEA64

tetradic

#645DEA #EA5D9D #E3EA5D #5DEAAB

square

#645DEA #EA5D9D #E3EA5D #5DEAAB

split-complementary

#645DEA #EAAB5D #9DEA5D

monochromatic

#1F17B5 #3027E3 #645DEA #9893F1 #CCC9F8

Accessibility & contrast

On white

4.89

#645DEA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.30

#645DEA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645DEA

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645DEA	#FFFFFF	#000000	##FFFFFF
##645DEA	1.00	4.89	4.30	4.89
#FFFFFF	4.89	1.00	21.00	1.00
#000000	4.30	21.00	1.00	21.00
##FFFFFF	4.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0076EF

Deuteranopia (green-blind)

#006BE7

Tritanopia (blue-blind)

#0E7F9B

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #645dea;
/* rgb */ color: rgb(100, 93, 234);
/* oklch */ color: oklch(56.5% 0.206 279.7);

Tailwind

colors: {
  custom: {
    50: '#9c8bf2',
    500: '#645dea',
    950: '#000000',
  },
}

SCSS

$custom: #645dea;
$custom-light: #9c8bf2;
$custom-dark: #000000;

JSON

{
  "hex": "#645dea",
  "rgb": {
    "r": 100,
    "g": 93,
    "b": 234
  },
  "hsl": {
    "h": 242.979,
    "s": 77.049,
    "l": 64.118
  },
  "oklch": {
    "l": 0.56549,
    "c": 0.20591,
    "h": 279.7
  },
  "luminance": 0.16479
}

Semantic roles & 50–950 ramp

primary

#645DEA

secondary

#E8EAB9

accent

#D90CCF

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C17

muted

#7F7D85

Preview Lab

Preview with #645DEA

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

Preview Lab → · Contrast checker → · Palette generator →