#645CA0#645CA0

#645CA0 is a mid, moderate blue. Relative luminance 0.129; OKLCH L 51.3% C 0.106 H 287.5°. Best body text is #FFFFFF at 5.87:1 contrast (WCAG AA passes).

Color values

HEX	#645CA0
RGB	rgb(100, 92, 160)
HSL	hsl(247, 27%, 49%)
HSV	hsv(247, 43%, 63%)
CMYK	cmyk(37.5%, 42.5%, 0%, 37.3%)
CIE-LAB	lab(42.61, 20.09, -35.85)
CIE-LCH	lch(42.61, 41.10, 299.26°)
OKLab	oklab(51.32% 0.0317 -0.1008)
OKLCH	oklch(51.32% 0.106 287.5)
XYZ	xyz(15.4261, 12.9012, 34.9283)
Luminance	0.1290 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645CA0 #98A05C

analogous

#5C76A0 #645CA0 #865CA0

triadic

#645CA0 #A0645C #5CA064

tetradic

#645CA0 #A05C76 #98A05C #5CA086

square

#645CA0 #A05C76 #98A05C #5CA086

split-complementary

#645CA0 #A0865C #76A05C

monochromatic

#332F52 #4C4679 #645CA0 #8882B7 #ADA9CD

Accessibility & contrast

On white

5.87

#645CA0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.58

#645CA0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645CA0

5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645CA0	#FFFFFF	#000000	##FFFFFF
##645CA0	1.00	5.87	3.58	5.87
#FFFFFF	5.87	1.00	21.00	1.00
#000000	3.58	21.00	1.00	21.00
##FFFFFF	5.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4566A3

Deuteranopia (green-blind)

#45639E

Tritanopia (blue-blind)

#546976

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #645ca0;
/* rgb */ color: rgb(100, 92, 160);
/* oklch */ color: oklch(51.3% 0.106 287.5);

Tailwind

colors: {
  custom: {
    50: '#938abc',
    500: '#645ca0',
    950: '#000000',
  },
}

SCSS

$custom: #645ca0;
$custom-light: #938abc;
$custom-dark: #000000;

JSON

{
  "hex": "#645ca0",
  "rgb": {
    "r": 100,
    "g": 92,
    "b": 160
  },
  "hsl": {
    "h": 247.059,
    "s": 26.984,
    "l": 49.412
  },
  "oklch": {
    "l": 0.51318,
    "c": 0.10571,
    "h": 287.5
  },
  "luminance": 0.12902
}

Semantic roles & 50–950 ramp

primary

#645CA0

secondary

#B8BC9C

accent

#C364B8

background

#F9F8FB

surface

#F1F0F6

border

#CBCBD0

text

#0D0B12

muted

#7E7C81

Preview Lab

Preview with #645CA0

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

Preview Lab → · Contrast checker → · Palette generator →