#645CA7#645CA7

#645CA7 is a mid, moderate blue. Relative luminance 0.132; OKLCH L 51.7% C 0.116 H 286.5°. Best body text is #FFFFFF at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#645CA7
RGB	rgb(100, 92, 167)
HSL	hsl(246, 30%, 51%)
HSV	hsv(246, 45%, 65%)
CMYK	cmyk(40.1%, 44.9%, 0%, 34.5%)
CIE-LAB	lab(42.99, 22.12, -39.40)
CIE-LCH	lch(42.99, 45.18, 299.31°)
OKLab	oklab(51.73% 0.0329 -0.1112)
OKLCH	oklch(51.73% 0.116 286.5)
XYZ	xyz(16.0558, 13.1531, 38.2446)
Luminance	0.1315 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645CA7 #9FA75C

analogous

#5C79A7 #645CA7 #895CA7

triadic

#645CA7 #A7645C #5CA764

tetradic

#645CA7 #A75C79 #9FA75C #5CA789

square

#645CA7 #A75C79 #9FA75C #5CA789

split-complementary

#645CA7 #A7895C #79A75C

monochromatic

#343059 #4C4580 #645CA7 #8A84BC #B0ABD2

Accessibility & contrast

On white

5.78

#645CA7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#645CA7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645CA7

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645CA7	#FFFFFF	#000000	##FFFFFF
##645CA7	1.00	5.78	3.63	5.78
#FFFFFF	5.78	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4168AA

Deuteranopia (green-blind)

#4063A5

Tritanopia (blue-blind)

#516B79

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #645ca7;
/* rgb */ color: rgb(100, 92, 167);
/* oklch */ color: oklch(51.7% 0.116 286.5);

Tailwind

colors: {
  custom: {
    50: '#938ac1',
    500: '#645ca7',
    950: '#000000',
  },
}

SCSS

$custom: #645ca7;
$custom-light: #938ac1;
$custom-dark: #000000;

JSON

{
  "hex": "#645ca7",
  "rgb": {
    "r": 100,
    "g": 92,
    "b": 167
  },
  "hsl": {
    "h": 246.4,
    "s": 29.88,
    "l": 50.784
  },
  "oklch": {
    "l": 0.51729,
    "c": 0.11596,
    "h": 286.5
  },
  "luminance": 0.13154
}

Semantic roles & 50–950 ramp

primary

#645CA7

secondary

#BCC09F

accent

#C662BB

background

#F9F8FB

surface

#F2F0F7

border

#CCCBD0

text

#0D0B12

muted

#7E7C81

Preview Lab

Preview with #645CA7

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

Preview Lab → · Contrast checker → · Palette generator →