#645FBE#645FBE

#645FBE is a mid, vivid blue. Relative luminance 0.146; OKLCH L 53.7% C 0.144 H 282.8°. Best body text is #FFFFFF at 5.35:1 contrast (WCAG AA passes).

Color values

HEX	#645FBE
RGB	rgb(100, 95, 190)
HSL	hsl(243, 42%, 56%)
HSV	hsv(243, 50%, 75%)
CMYK	cmyk(47.4%, 50%, 0%, 25.5%)
CIE-LAB	lab(45.10, 27.15, -49.52)
CIE-LCH	lch(45.10, 56.47, 298.73°)
OKLab	oklab(53.75% 0.0319 -0.1408)
OKLCH	oklch(53.75% 0.144 282.8)
XYZ	xyz(18.6392, 14.6105, 50.5432)
Luminance	0.1461 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645FBE #B9BE5F

analogous

#5F89BE #645FBE #935FBE

triadic

#645FBE #BE645F #5FBE64

tetradic

#645FBE #BE5F89 #B9BE5F #5FBE93

square

#645FBE #BE5F89 #B9BE5F #5FBE93

split-complementary

#645FBE #BE935F #89BE5F

monochromatic

#332F74 #46419F #645FBE #8E8BD0 #B8B6E1

Accessibility & contrast

On white

5.35

#645FBE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.92

#645FBE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645FBE

5.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645FBE	#FFFFFF	#000000	##FFFFFF
##645FBE	1.00	5.35	3.92	5.35
#FFFFFF	5.35	1.00	21.00	1.00
#000000	3.92	21.00	1.00	21.00
##FFFFFF	5.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#346EC1

Deuteranopia (green-blind)

#2F68BC

Tritanopia (blue-blind)

#457385

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #645fbe;
/* rgb */ color: rgb(100, 95, 190);
/* oklch */ color: oklch(53.7% 0.144 282.8);

Tailwind

colors: {
  custom: {
    50: '#968cd2',
    500: '#645fbe',
    950: '#000000',
  },
}

SCSS

$custom: #645fbe;
$custom-light: #968cd2;
$custom-dark: #000000;

JSON

{
  "hex": "#645fbe",
  "rgb": {
    "r": 100,
    "g": 95,
    "b": 190
  },
  "hsl": {
    "h": 243.158,
    "s": 42.222,
    "l": 55.882
  },
  "oklch": {
    "l": 0.53749,
    "c": 0.14442,
    "h": 282.8
  },
  "luminance": 0.14611
}

Semantic roles & 50–950 ramp

primary

#645FBE

secondary

#CED0A9

accent

#D256CB

background

#F9F8FD

surface

#F2F0FA

border

#CCCBD3

text

#0E0C14

muted

#7E7D83

Preview Lab

Preview with #645FBE

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

Preview Lab → · Contrast checker → · Palette generator →