#645DAD#645DAD

#645DAD is a mid, vivid blue. Relative luminance 0.136; OKLCH L 52.3% C 0.123 H 285.3°. Best body text is #FFFFFF at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#645DAD
RGB	rgb(100, 93, 173)
HSL	hsl(245, 33%, 52%)
HSV	hsv(245, 46%, 68%)
CMYK	cmyk(42.2%, 46.2%, 0%, 32.2%)
CIE-LAB	lab(43.59, 23.26, -42.00)
CIE-LCH	lch(43.59, 48.01, 298.99°)
OKLab	oklab(52.29% 0.0325 -0.1188)
OKLCH	oklch(52.29% 0.123 285.3)
XYZ	xyz(16.7106, 13.5545, 41.2629)
Luminance	0.1356 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645DAD #A6AD5D

analogous

#5D7EAD #645DAD #8C5DAD

triadic

#645DAD #AD645D #5DAD64

tetradic

#645DAD #AD5D7E #A6AD5D #5DAD8C

square

#645DAD #AD5D7E #A6AD5D #5DAD8C

split-complementary

#645DAD #AD8C5D #7EAD5D

monochromatic

#34305F #4B4588 #645DAD #8B86C2 #B2AED6

Accessibility & contrast

On white

5.66

#645DAD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#645DAD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645DAD

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645DAD	#FFFFFF	#000000	##FFFFFF
##645DAD	1.00	5.66	3.71	5.66
#FFFFFF	5.66	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F69B0

Deuteranopia (green-blind)

#3C65AB

Tritanopia (blue-blind)

#4E6D7C

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #645dad;
/* rgb */ color: rgb(100, 93, 173);
/* oklch */ color: oklch(52.3% 0.123 285.3);

Tailwind

colors: {
  custom: {
    50: '#948bc6',
    500: '#645dad',
    950: '#000000',
  },
}

SCSS

$custom: #645dad;
$custom-light: #948bc6;
$custom-dark: #000000;

JSON

{
  "hex": "#645dad",
  "rgb": {
    "r": 100,
    "g": 93,
    "b": 173
  },
  "hsl": {
    "h": 245.25,
    "s": 32.787,
    "l": 52.157
  },
  "oklch": {
    "l": 0.52288,
    "c": 0.12315,
    "h": 285.3
  },
  "luminance": 0.13555
}

Semantic roles & 50–950 ramp

primary

#645DAD

secondary

#C1C4A1

accent

#C95FC0

background

#F9F8FC

surface

#F2F0F8

border

#CCCBD1

text

#0D0C13

muted

#7E7D82

Preview Lab

Preview with #645DAD

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

Preview Lab → · Contrast checker → · Palette generator →