#645FA8#645FA8

#645FA8 is a mid, moderate blue. Relative luminance 0.137; OKLCH L 52.4% C 0.113 H 284.9°. Best body text is #FFFFFF at 5.61:1 contrast (WCAG AA passes).

Color values

HEX	#645FA8
RGB	rgb(100, 95, 168)
HSL	hsl(244, 30%, 52%)
HSV	hsv(244, 43%, 66%)
CMYK	cmyk(40.5%, 43.5%, 0%, 34.1%)
CIE-LAB	lab(43.83, 20.55, -38.67)
CIE-LCH	lch(43.83, 43.79, 297.99°)
OKLab	oklab(52.38% 0.029 -0.109)
OKLCH	oklch(52.38% 0.113 284.9)
XYZ	xyz(16.4136, 13.7203, 38.8217)
Luminance	0.1372 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645FA8 #A3A85F

analogous

#5F7FA8 #645FA8 #895FA8

triadic

#645FA8 #A8645F #5FA864

tetradic

#645FA8 #A85F7F #A3A85F #5FA889

square

#645FA8 #A85F7F #A3A85F #5FA889

split-complementary

#645FA8 #A8895F #7FA85F

monochromatic

#34325B #4B4783 #645FA8 #8A87BE #B1AED3

Accessibility & contrast

On white

5.61

#645FA8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.74

#645FA8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645FA8

5.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645FA8	#FFFFFF	#000000	##FFFFFF
##645FA8	1.00	5.61	3.74	5.61
#FFFFFF	5.61	1.00	21.00	1.00
#000000	3.74	21.00	1.00	21.00
##FFFFFF	5.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#456AAB

Deuteranopia (green-blind)

#4365A6

Tritanopia (blue-blind)

#506D7B

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #645fa8;
/* rgb */ color: rgb(100, 95, 168);
/* oklch */ color: oklch(52.4% 0.113 284.9);

Tailwind

colors: {
  custom: {
    50: '#938cc2',
    500: '#645fa8',
    950: '#000000',
  },
}

SCSS

$custom: #645fa8;
$custom-light: #938cc2;
$custom-dark: #000000;

JSON

{
  "hex": "#645fa8",
  "rgb": {
    "r": 100,
    "g": 95,
    "b": 168
  },
  "hsl": {
    "h": 244.11,
    "s": 29.555,
    "l": 51.569
  },
  "oklch": {
    "l": 0.52381,
    "c": 0.11285,
    "h": 284.9
  },
  "luminance": 0.13721
}

Semantic roles & 50–950 ramp

primary

#645FA8

secondary

#BFC1A1

accent

#C662BF

background

#F9F8FC

surface

#F2F0F8

border

#CCCBD1

text

#0D0C12

muted

#7E7D81

Preview Lab

Preview with #645FA8

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

Preview Lab → · Contrast checker → · Palette generator →