#645EA5#645EA5

#645EA5 is a mid, moderate blue. Relative luminance 0.134; OKLCH L 52.0% C 0.110 H 285.8°. Best body text is #FFFFFF at 5.70:1 contrast (WCAG AA passes).

Color values

HEX	#645EA5
RGB	rgb(100, 94, 165)
HSL	hsl(245, 28%, 51%)
HSV	hsv(245, 43%, 65%)
CMYK	cmyk(39.4%, 43%, 0%, 35.3%)
CIE-LAB	lab(43.41, 20.30, -37.56)
CIE-LCH	lch(43.41, 42.70, 298.38°)
OKLab	oklab(52.01% 0.0299 -0.1058)
OKLCH	oklch(52.01% 0.11 285.8)
XYZ	xyz(16.0479, 13.4308, 37.3369)
Luminance	0.1343 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645EA5 #9FA55E

analogous

#5E7BA5 #645EA5 #875EA5

triadic

#645EA5 #A5645E #5EA564

tetradic

#645EA5 #A55E7B #9FA55E #5EA587

square

#645EA5 #A55E7B #9FA55E #5EA587

split-complementary

#645EA5 #A5875E #7BA55E

monochromatic

#343158 #4C477F #645EA5 #8A85BB #B0ADD1

Accessibility & contrast

On white

5.70

#645EA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.69

#645EA5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645EA5

5.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645EA5	#FFFFFF	#000000	##FFFFFF
##645EA5	1.00	5.70	3.69	5.70
#FFFFFF	5.70	1.00	21.00	1.00
#000000	3.69	21.00	1.00	21.00
##FFFFFF	5.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4569A8

Deuteranopia (green-blind)

#4465A3

Tritanopia (blue-blind)

#526C79

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #645ea5;
/* rgb */ color: rgb(100, 94, 165);
/* oklch */ color: oklch(52.0% 0.110 285.8);

Tailwind

colors: {
  custom: {
    50: '#938bc0',
    500: '#645ea5',
    950: '#000000',
  },
}

SCSS

$custom: #645ea5;
$custom-light: #938bc0;
$custom-dark: #000000;

JSON

{
  "hex": "#645ea5",
  "rgb": {
    "r": 100,
    "g": 94,
    "b": 165
  },
  "hsl": {
    "h": 245.07,
    "s": 28.287,
    "l": 50.784
  },
  "oklch": {
    "l": 0.52007,
    "c": 0.10996,
    "h": 285.8
  },
  "luminance": 0.13431
}

Semantic roles & 50–950 ramp

primary

#645EA5

secondary

#BCBFA0

accent

#C563BC

background

#F9F8FB

surface

#F2F0F7

border

#CCCBD0

text

#0D0C12

muted

#7E7D81

Preview Lab

Preview with #645EA5

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

Preview Lab → · Contrast checker → · Palette generator →