#645EA9#645EA9

#645EA9 is a mid, moderate blue. Relative luminance 0.136; OKLCH L 52.2% C 0.116 H 285.3°. Best body text is #FFFFFF at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#645EA9
RGB	rgb(100, 94, 169)
HSL	hsl(245, 30%, 52%)
HSV	hsv(245, 44%, 66%)
CMYK	cmyk(40.8%, 44.4%, 0%, 33.7%)
CIE-LAB	lab(43.62, 21.46, -39.58)
CIE-LCH	lch(43.62, 45.03, 298.47°)
OKLab	oklab(52.24% 0.0306 -0.1117)
OKLCH	oklch(52.24% 0.116 285.3)
XYZ	xyz(16.4176, 13.5787, 39.2843)
Luminance	0.1358 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645EA9 #A3A95E

analogous

#5E7EA9 #645EA9 #8A5EA9

triadic

#645EA9 #A9645E #5EA964

tetradic

#645EA9 #A95E7E #A3A95E #5EA98A

square

#645EA9 #A95E7E #A3A95E #5EA98A

split-complementary

#645EA9 #A98A5E #7EA95E

monochromatic

#34315C #4B4684 #645EA9 #8A86BE #B1AED4

Accessibility & contrast

On white

5.65

#645EA9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.72

#645EA9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645EA9

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645EA9	#FFFFFF	#000000	##FFFFFF
##645EA9	1.00	5.65	3.72	5.65
#FFFFFF	5.65	1.00	21.00	1.00
#000000	3.72	21.00	1.00	21.00
##FFFFFF	5.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4369AC

Deuteranopia (green-blind)

#4165A7

Tritanopia (blue-blind)

#506D7B

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #645ea9;
/* rgb */ color: rgb(100, 94, 169);
/* oklch */ color: oklch(52.2% 0.116 285.3);

Tailwind

colors: {
  custom: {
    50: '#938bc3',
    500: '#645ea9',
    950: '#000000',
  },
}

SCSS

$custom: #645ea9;
$custom-light: #938bc3;
$custom-dark: #000000;

JSON

{
  "hex": "#645ea9",
  "rgb": {
    "r": 100,
    "g": 94,
    "b": 169
  },
  "hsl": {
    "h": 244.8,
    "s": 30.364,
    "l": 51.569
  },
  "oklch": {
    "l": 0.52242,
    "c": 0.11583,
    "h": 285.3
  },
  "luminance": 0.13579
}

Semantic roles & 50–950 ramp

primary

#645EA9

secondary

#BFC2A1

accent

#C761BE

background

#F9F8FC

surface

#F2F0F8

border

#CCCBD1

text

#0D0C12

muted

#7E7D81

Preview Lab

Preview with #645EA9

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

Preview Lab → · Contrast checker → · Palette generator →