#645CA8#645CA8

#645CA8 is a mid, moderate blue. Relative luminance 0.132; OKLCH L 51.8% C 0.117 H 286.4°. Best body text is #FFFFFF at 5.77:1 contrast (WCAG AA passes).

Color values

HEX	#645CA8
RGB	rgb(100, 92, 168)
HSL	hsl(246, 30%, 51%)
HSV	hsv(246, 45%, 66%)
CMYK	cmyk(40.5%, 45.2%, 0%, 34.1%)
CIE-LAB	lab(43.05, 22.41, -39.90)
CIE-LCH	lch(43.05, 45.77, 299.32°)
OKLab	oklab(51.79% 0.0331 -0.1127)
OKLCH	oklch(51.79% 0.117 286.4)
XYZ	xyz(16.1486, 13.1902, 38.7333)
Luminance	0.1319 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645CA8 #A0A85C

analogous

#5C7AA8 #645CA8 #8A5CA8

triadic

#645CA8 #A8645C #5CA864

tetradic

#645CA8 #A85C7A #A0A85C #5CA88A

square

#645CA8 #A85C7A #A0A85C #5CA88A

split-complementary

#645CA8 #A88A5C #7AA85C

monochromatic

#34305A #4C4582 #645CA8 #8A84BD #B0ACD3

Accessibility & contrast

On white

5.77

#645CA8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#645CA8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645CA8

5.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645CA8	#FFFFFF	#000000	##FFFFFF
##645CA8	1.00	5.77	3.64	5.77
#FFFFFF	5.77	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4068AB

Deuteranopia (green-blind)

#3F64A6

Tritanopia (blue-blind)

#516B7A

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #645ca8;
/* rgb */ color: rgb(100, 92, 168);
/* oklch */ color: oklch(51.8% 0.117 286.4);

Tailwind

colors: {
  custom: {
    50: '#938ac2',
    500: '#645ca8',
    950: '#000000',
  },
}

SCSS

$custom: #645ca8;
$custom-light: #938ac2;
$custom-dark: #000000;

JSON

{
  "hex": "#645ca8",
  "rgb": {
    "r": 100,
    "g": 92,
    "b": 168
  },
  "hsl": {
    "h": 246.316,
    "s": 30.4,
    "l": 50.98
  },
  "oklch": {
    "l": 0.51789,
    "c": 0.11742,
    "h": 286.4
  },
  "luminance": 0.13191
}

Semantic roles & 50–950 ramp

primary

#645CA8

secondary

#BDC19F

accent

#C761BC

background

#F9F8FC

surface

#F2F0F8

border

#CCCBD1

text

#0D0B12

muted

#7E7C81

Preview Lab

Preview with #645CA8

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

Preview Lab → · Contrast checker → · Palette generator →