#645DD5#645DD5

#645DD5 is a mid, vivid blue. Relative luminance 0.153; OKLCH L 55.0% C 0.179 H 281.4°. Best body text is #FFFFFF at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#645DD5
RGB	rgb(100, 93, 213)
HSL	hsl(244, 59%, 60%)
HSV	hsv(244, 56%, 84%)
CMYK	cmyk(53.1%, 56.3%, 0%, 16.5%)
CIE-LAB	lab(46.10, 35.45, -61.15)
CIE-LCH	lch(46.10, 70.68, 300.10°)
OKLab	oklab(54.97% 0.0353 -0.1751)
OKLCH	oklch(54.97% 0.179 281.4)
XYZ	xyz(21.1764, 15.3409, 64.7831)
Luminance	0.1534 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645DD5 #CED55D

analogous

#5D92D5 #645DD5 #A05DD5

triadic

#645DD5 #D5645D #5DD564

tetradic

#645DD5 #D55D92 #CED55D #5DD5A0

square

#645DD5 #D55D92 #CED55D #5DD5A0

split-complementary

#645DD5 #D5A05D #92D55D

monochromatic

#2C2692 #3B32C2 #645DD5 #928EE2 #C1BEEE

Accessibility & contrast

On white

5.16

#645DD5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.07

#645DD5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645DD5

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645DD5	#FFFFFF	#000000	##FFFFFF
##645DD5	1.00	5.16	4.07	5.16
#FFFFFF	5.16	1.00	21.00	1.00
#000000	4.07	21.00	1.00	21.00
##FFFFFF	5.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0071D9

Deuteranopia (green-blind)

#0069D2

Tritanopia (blue-blind)

#337990

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #645dd5;
/* rgb */ color: rgb(100, 93, 213);
/* oklch */ color: oklch(55.0% 0.179 281.4);

Tailwind

colors: {
  custom: {
    50: '#998be3',
    500: '#645dd5',
    950: '#000000',
  },
}

SCSS

$custom: #645dd5;
$custom-light: #998be3;
$custom-dark: #000000;

JSON

{
  "hex": "#645dd5",
  "rgb": {
    "r": 100,
    "g": 93,
    "b": 213
  },
  "hsl": {
    "h": 243.5,
    "s": 58.824,
    "l": 60
  },
  "oklch": {
    "l": 0.54972,
    "c": 0.17858,
    "h": 281.4
  },
  "luminance": 0.15342
}

Semantic roles & 50–950 ramp

primary

#645DD5

secondary

#DBDEB0

accent

#E246D9

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0F0C15

muted

#7E7D84

Preview Lab

Preview with #645DD5

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

Preview Lab → · Contrast checker → · Palette generator →