#645CD9#645CD9

#645CD9 is a mid, vivid blue. Relative luminance 0.154; OKLCH L 55.1% C 0.185 H 281.3°. Best body text is #FFFFFF at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#645CD9
RGB	rgb(100, 92, 217)
HSL	hsl(244, 62%, 61%)
HSV	hsv(244, 58%, 85%)
CMYK	cmyk(53.9%, 57.6%, 0%, 14.9%)
CIE-LAB	lab(46.14, 37.29, -63.36)
CIE-LCH	lch(46.14, 73.52, 300.48°)
OKLab	oklab(55.09% 0.0363 -0.1816)
OKLCH	oklch(55.09% 0.185 281.3)
XYZ	xyz(21.6032, 15.3721, 67.4609)
Luminance	0.1537 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645CD9 #D1D95C

analogous

#5C92D9 #645CD9 #A25CD9

triadic

#645CD9 #D9645C #5CD964

tetradic

#645CD9 #D95C92 #D1D95C #5CD9A2

square

#645CD9 #D95C92 #D1D95C #5CD9A2

split-complementary

#645CD9 #D9A25C #92D95C

monochromatic

#2B2397 #392FC9 #645CD9 #938EE5 #C2BFF0

Accessibility & contrast

On white

5.15

#645CD9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.07

#645CD9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645CD9

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645CD9	#FFFFFF	#000000	##FFFFFF
##645CD9	1.00	5.15	4.07	5.15
#FFFFFF	5.15	1.00	21.00	1.00
#000000	4.07	21.00	1.00	21.00
##FFFFFF	5.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0072DD

Deuteranopia (green-blind)

#0069D6

Tritanopia (blue-blind)

#2E7992

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #645cd9;
/* rgb */ color: rgb(100, 92, 217);
/* oklch */ color: oklch(55.1% 0.185 281.3);

Tailwind

colors: {
  custom: {
    50: '#998ae6',
    500: '#645cd9',
    950: '#000000',
  },
}

SCSS

$custom: #645cd9;
$custom-light: #998ae6;
$custom-dark: #000000;

JSON

{
  "hex": "#645cd9",
  "rgb": {
    "r": 100,
    "g": 92,
    "b": 217
  },
  "hsl": {
    "h": 243.84,
    "s": 62.189,
    "l": 60.588
  },
  "oklch": {
    "l": 0.55092,
    "c": 0.18517,
    "h": 281.3
  },
  "luminance": 0.15373
}

Semantic roles & 50–950 ramp

primary

#645CD9

secondary

#DDE0B1

accent

#CA1CBF

background

#FAF8FE

surface

#F3F0FC

border

#CDCBD5

text

#0F0C16

muted

#7F7D84

Preview Lab

Preview with #645CD9

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

Preview Lab → · Contrast checker → · Palette generator →