#645DD7#645DD7

#645DD7 is a mid, vivid blue. Relative luminance 0.154; OKLCH L 55.1% C 0.181 H 281.2°. Best body text is #FFFFFF at 5.14:1 contrast (WCAG AA passes).

Color values

HEX	#645DD7
RGB	rgb(100, 93, 215)
HSL	hsl(243, 60%, 60%)
HSV	hsv(243, 57%, 84%)
CMYK	cmyk(53.5%, 56.7%, 0%, 15.7%)
CIE-LAB	lab(46.24, 36.07, -62.07)
CIE-LCH	lch(46.24, 71.79, 300.17°)
OKLab	oklab(55.12% 0.0353 -0.1778)
OKLCH	oklch(55.12% 0.181 281.2)
XYZ	xyz(21.4318, 15.4430, 66.1283)
Luminance	0.1544 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645DD7 #D0D75D

analogous

#5D93D7 #645DD7 #A15DD7

triadic

#645DD7 #D7645D #5DD764

tetradic

#645DD7 #D75D93 #D0D75D #5DD7A1

square

#645DD7 #D75D93 #D0D75D #5DD7A1

split-complementary

#645DD7 #D7A15D #93D75D

monochromatic

#2B2595 #3931C6 #645DD7 #938EE3 #C2BFEF

Accessibility & contrast

On white

5.14

#645DD7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.09

#645DD7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645DD7

5.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645DD7	#FFFFFF	#000000	##FFFFFF
##645DD7	1.00	5.14	4.09	5.14
#FFFFFF	5.14	1.00	21.00	1.00
#000000	4.09	21.00	1.00	21.00
##FFFFFF	5.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0072DB

Deuteranopia (green-blind)

#0069D4

Tritanopia (blue-blind)

#307991

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #645dd7;
/* rgb */ color: rgb(100, 93, 215);
/* oklch */ color: oklch(55.1% 0.181 281.2);

Tailwind

colors: {
  custom: {
    50: '#998be4',
    500: '#645dd7',
    950: '#000000',
  },
}

SCSS

$custom: #645dd7;
$custom-light: #998be4;
$custom-dark: #000000;

JSON

{
  "hex": "#645dd7",
  "rgb": {
    "r": 100,
    "g": 93,
    "b": 215
  },
  "hsl": {
    "h": 243.443,
    "s": 60.396,
    "l": 60.392
  },
  "oklch": {
    "l": 0.55118,
    "c": 0.18123,
    "h": 281.2
  },
  "luminance": 0.15444
}

Semantic roles & 50–950 ramp

primary

#645DD7

secondary

#DDDFB1

accent

#C81DBE

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0F0C16

muted

#7E7D84

Preview Lab

Preview with #645DD7

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

Preview Lab → · Contrast checker → · Palette generator →