#645DA8#645DA8

#645DA8 is a mid, moderate blue. Relative luminance 0.134; OKLCH L 52.0% C 0.116 H 285.9°. Best body text is #FFFFFF at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#645DA8
RGB	rgb(100, 93, 168)
HSL	hsl(246, 30%, 51%)
HSV	hsv(246, 45%, 66%)
CMYK	cmyk(40.5%, 44.6%, 0%, 34.1%)
CIE-LAB	lab(43.31, 21.79, -39.49)
CIE-LCH	lch(43.31, 45.11, 298.89°)
OKLab	oklab(51.99% 0.0317 -0.1115)
OKLCH	oklch(51.99% 0.116 285.9)
XYZ	xyz(16.2358, 13.3646, 38.7624)
Luminance	0.1336 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645DA8 #A1A85D

analogous

#5D7BA8 #645DA8 #895DA8

triadic

#645DA8 #A8645D #5DA864

tetradic

#645DA8 #A85D7B #A1A85D #5DA889

square

#645DA8 #A85D7B #A1A85D #5DA889

split-complementary

#645DA8 #A8895D #7BA85D

monochromatic

#34305A #4B4682 #645DA8 #8A85BD #B0ADD3

Accessibility & contrast

On white

5.72

#645DA8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#645DA8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645DA8

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645DA8	#FFFFFF	#000000	##FFFFFF
##645DA8	1.00	5.72	3.67	5.72
#FFFFFF	5.72	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4268AB

Deuteranopia (green-blind)

#4064A6

Tritanopia (blue-blind)

#516C7A

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #645da8;
/* rgb */ color: rgb(100, 93, 168);
/* oklch */ color: oklch(52.0% 0.116 285.9);

Tailwind

colors: {
  custom: {
    50: '#938bc2',
    500: '#645da8',
    950: '#000000',
  },
}

SCSS

$custom: #645da8;
$custom-light: #938bc2;
$custom-dark: #000000;

JSON

{
  "hex": "#645da8",
  "rgb": {
    "r": 100,
    "g": 93,
    "b": 168
  },
  "hsl": {
    "h": 245.6,
    "s": 30.12,
    "l": 51.176
  },
  "oklch": {
    "l": 0.51986,
    "c": 0.1159,
    "h": 285.9
  },
  "luminance": 0.13365
}

Semantic roles & 50–950 ramp

primary

#645DA8

secondary

#BEC1A0

accent

#C661BD

background

#F9F8FC

surface

#F2F0F8

border

#CCCBD1

text

#0D0C12

muted

#7E7D81

Preview Lab

Preview with #645DA8

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

Preview Lab → · Contrast checker → · Palette generator →