#645EAA#645EAA

#645EAA is a mid, moderate blue. Relative luminance 0.136; OKLCH L 52.3% C 0.117 H 285.2°. Best body text is #FFFFFF at 5.64:1 contrast (WCAG AA passes).

Color values

HEX	#645EAA
RGB	rgb(100, 94, 170)
HSL	hsl(245, 31%, 52%)
HSV	hsv(245, 45%, 67%)
CMYK	cmyk(41.2%, 44.7%, 0%, 33.3%)
CIE-LAB	lab(43.68, 21.76, -40.08)
CIE-LCH	lch(43.68, 45.61, 298.49°)
OKLab	oklab(52.3% 0.0307 -0.1132)
OKLCH	oklch(52.3% 0.117 285.2)
XYZ	xyz(16.5119, 13.6164, 39.7806)
Luminance	0.1362 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645EAA #A4AA5E

analogous

#5E7EAA #645EAA #8A5EAA

triadic

#645EAA #AA645E #5EAA64

tetradic

#645EAA #AA5E7E #A4AA5E #5EAA8A

square

#645EAA #AA5E7E #A4AA5E #5EAA8A

split-complementary

#645EAA #AA8A5E #7EAA5E

monochromatic

#34315D #4B4685 #645EAA #8B86BF #B1AED4

Accessibility & contrast

On white

5.64

#645EAA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.72

#645EAA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645EAA

5.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645EAA	#FFFFFF	#000000	##FFFFFF
##645EAA	1.00	5.64	3.72	5.64
#FFFFFF	5.64	1.00	21.00	1.00
#000000	3.72	21.00	1.00	21.00
##FFFFFF	5.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4269AD

Deuteranopia (green-blind)

#4065A8

Tritanopia (blue-blind)

#506D7C

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #645eaa;
/* rgb */ color: rgb(100, 94, 170);
/* oklch */ color: oklch(52.3% 0.117 285.2);

Tailwind

colors: {
  custom: {
    50: '#938bc4',
    500: '#645eaa',
    950: '#000000',
  },
}

SCSS

$custom: #645eaa;
$custom-light: #938bc4;
$custom-dark: #000000;

JSON

{
  "hex": "#645eaa",
  "rgb": {
    "r": 100,
    "g": 94,
    "b": 170
  },
  "hsl": {
    "h": 244.737,
    "s": 30.894,
    "l": 51.765
  },
  "oklch": {
    "l": 0.52302,
    "c": 0.11729,
    "h": 285.2
  },
  "luminance": 0.13617
}

Semantic roles & 50–950 ramp

primary

#645EAA

secondary

#C0C3A1

accent

#C761BF

background

#F9F8FC

surface

#F2F0F8

border

#CCCBD1

text

#0D0C12

muted

#7E7D81

Preview Lab

Preview with #645EAA

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

Preview Lab → · Contrast checker → · Palette generator →