#645DA7#645DA7

#645DA7 is a mid, moderate blue. Relative luminance 0.133; OKLCH L 51.9% C 0.114 H 286.0°. Best body text is #FFFFFF at 5.73:1 contrast (WCAG AA passes).

Color values

HEX	#645DA7
RGB	rgb(100, 93, 167)
HSL	hsl(246, 30%, 51%)
HSV	hsv(246, 44%, 65%)
CMYK	cmyk(40.1%, 44.3%, 0%, 34.5%)
CIE-LAB	lab(43.25, 21.50, -38.99)
CIE-LCH	lch(43.25, 44.52, 298.87°)
OKLab	oklab(51.93% 0.0316 -0.11)
OKLCH	oklch(51.93% 0.114 286)
XYZ	xyz(16.1430, 13.3275, 38.2736)
Luminance	0.1333 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645DA7 #A0A75D

analogous

#5D7BA7 #645DA7 #895DA7

triadic

#645DA7 #A7645D #5DA764

tetradic

#645DA7 #A75D7B #A0A75D #5DA789

square

#645DA7 #A75D7B #A0A75D #5DA789

split-complementary

#645DA7 #A7895D #7BA75D

monochromatic

#343059 #4C4681 #645DA7 #8A85BD #B0ACD2

Accessibility & contrast

On white

5.73

#645DA7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#645DA7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645DA7

5.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645DA7	#FFFFFF	#000000	##FFFFFF
##645DA7	1.00	5.73	3.67	5.73
#FFFFFF	5.73	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4368AA

Deuteranopia (green-blind)

#4164A5

Tritanopia (blue-blind)

#516C7A

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #645da7;
/* rgb */ color: rgb(100, 93, 167);
/* oklch */ color: oklch(51.9% 0.114 286.0);

Tailwind

colors: {
  custom: {
    50: '#938bc1',
    500: '#645da7',
    950: '#000000',
  },
}

SCSS

$custom: #645da7;
$custom-light: #938bc1;
$custom-dark: #000000;

JSON

{
  "hex": "#645da7",
  "rgb": {
    "r": 100,
    "g": 93,
    "b": 167
  },
  "hsl": {
    "h": 245.676,
    "s": 29.6,
    "l": 50.98
  },
  "oklch": {
    "l": 0.51926,
    "c": 0.11444,
    "h": 286
  },
  "luminance": 0.13328
}

Semantic roles & 50–950 ramp

primary

#645DA7

secondary

#BDC0A0

accent

#C662BC

background

#F9F8FB

surface

#F2F0F7

border

#CCCBD0

text

#0D0C12

muted

#7E7D81

Preview Lab

Preview with #645DA7

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

Preview Lab → · Contrast checker → · Palette generator →