#645C93#645C93

#645C93 is a mid, moderate blue. Relative luminance 0.125; OKLCH L 50.6% C 0.086 H 289.6°. Best body text is #FFFFFF at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#645C93
RGB	rgb(100, 92, 147)
HSL	hsl(249, 23%, 47%)
HSV	hsv(249, 37%, 58%)
CMYK	cmyk(32%, 37.4%, 0%, 42.4%)
CIE-LAB	lab(41.95, 16.43, -29.13)
CIE-LCH	lch(41.95, 33.44, 299.42°)
OKLab	oklab(50.6% 0.029 -0.0813)
OKLCH	oklch(50.6% 0.086 289.6)
XYZ	xyz(14.3478, 12.4699, 29.2491)
Luminance	0.1247 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645C93 #8B935C

analogous

#5C7093 #645C93 #805C93

triadic

#645C93 #93645C #5C9364

tetradic

#645C93 #935C70 #8B935C #5C9380

square

#645C93 #935C70 #8B935C #5C9380

split-complementary

#645C93 #93805C #70935C

monochromatic

#312D48 #4A446D #645C93 #857EAE #A9A4C6

Accessibility & contrast

On white

6.01

#645C93 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#645C93 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645C93

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645C93	#FFFFFF	#000000	##FFFFFF
##645C93	1.00	6.01	3.49	6.01
#FFFFFF	6.01	1.00	21.00	1.00
#000000	3.49	21.00	1.00	21.00
##FFFFFF	6.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C6495

Deuteranopia (green-blind)

#4C6292

Tritanopia (blue-blind)

#596670

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #645c93;
/* rgb */ color: rgb(100, 92, 147);
/* oklch */ color: oklch(50.6% 0.086 289.6);

Tailwind

colors: {
  custom: {
    50: '#928ab3',
    500: '#645c93',
    950: '#000000',
  },
}

SCSS

$custom: #645c93;
$custom-light: #928ab3;
$custom-dark: #000000;

JSON

{
  "hex": "#645c93",
  "rgb": {
    "r": 100,
    "g": 92,
    "b": 147
  },
  "hsl": {
    "h": 248.727,
    "s": 23.013,
    "l": 46.863
  },
  "oklch": {
    "l": 0.50599,
    "c": 0.08632,
    "h": 289.6
  },
  "luminance": 0.1247
}

Semantic roles & 50–950 ramp

primary

#645C93

secondary

#B0B497

accent

#C068B3

background

#F9F8FB

surface

#F1F0F6

border

#CBCBD0

text

#0D0B11

muted

#7E7C80

Preview Lab

Preview with #645C93

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

Preview Lab → · Contrast checker → · Palette generator →