#645FBD#645FBD

#645FBD is a mid, vivid blue. Relative luminance 0.146; OKLCH L 53.7% C 0.143 H 282.9°. Best body text is #FFFFFF at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#645FBD
RGB	rgb(100, 95, 189)
HSL	hsl(243, 42%, 56%)
HSV	hsv(243, 50%, 74%)
CMYK	cmyk(47.1%, 49.7%, 0%, 25.9%)
CIE-LAB	lab(45.04, 26.84, -49.04)
CIE-LCH	lch(45.04, 55.90, 298.70°)
OKLab	oklab(53.68% 0.0318 -0.1394)
OKLCH	oklch(53.68% 0.143 282.9)
XYZ	xyz(18.5303, 14.5670, 49.9696)
Luminance	0.1457 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645FBD #B8BD5F

analogous

#5F89BD #645FBD #935FBD

triadic

#645FBD #BD645F #5FBD64

tetradic

#645FBD #BD5F89 #B8BD5F #5FBD93

square

#645FBD #BD5F89 #B8BD5F #5FBD93

split-complementary

#645FBD #BD935F #89BD5F

monochromatic

#332F72 #46419E #645FBD #8E8ACF #B8B6E1

Accessibility & contrast

On white

5.37

#645FBD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.91

#645FBD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645FBD

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645FBD	#FFFFFF	#000000	##FFFFFF
##645FBD	1.00	5.37	3.91	5.37
#FFFFFF	5.37	1.00	21.00	1.00
#000000	3.91	21.00	1.00	21.00
##FFFFFF	5.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#356EC0

Deuteranopia (green-blind)

#3067BB

Tritanopia (blue-blind)

#457385

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #645fbd;
/* rgb */ color: rgb(100, 95, 189);
/* oklch */ color: oklch(53.7% 0.143 282.9);

Tailwind

colors: {
  custom: {
    50: '#968cd1',
    500: '#645fbd',
    950: '#000000',
  },
}

SCSS

$custom: #645fbd;
$custom-light: #968cd1;
$custom-dark: #000000;

JSON

{
  "hex": "#645fbd",
  "rgb": {
    "r": 100,
    "g": 95,
    "b": 189
  },
  "hsl": {
    "h": 243.191,
    "s": 41.593,
    "l": 55.686
  },
  "oklch": {
    "l": 0.53683,
    "c": 0.14301,
    "h": 282.9
  },
  "luminance": 0.14568
}

Semantic roles & 50–950 ramp

primary

#645FBD

secondary

#CDCFA8

accent

#D156CB

background

#F9F8FC

surface

#F2F0F9

border

#CCCBD2

text

#0E0C14

muted

#7E7D82

Preview Lab

Preview with #645FBD

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

Preview Lab → · Contrast checker → · Palette generator →