#645EA0#645EA0

#645EA0 is a mid, moderate blue. Relative luminance 0.133; OKLCH L 51.7% C 0.103 H 286.4°. Best body text is #FFFFFF at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#645EA0
RGB	rgb(100, 94, 160)
HSL	hsl(245, 26%, 50%)
HSV	hsv(245, 41%, 63%)
CMYK	cmyk(37.5%, 41.3%, 0%, 37.3%)
CIE-LAB	lab(43.14, 18.85, -35.02)
CIE-LCH	lch(43.14, 39.77, 298.29°)
OKLab	oklab(51.72% 0.0289 -0.0984)
OKLCH	oklch(51.72% 0.103 286.4)
XYZ	xyz(15.6017, 13.2523, 34.9868)
Luminance	0.1325 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645EA0 #9AA05E

analogous

#5E79A0 #645EA0 #855EA0

triadic

#645EA0 #A0645E #5EA064

tetradic

#645EA0 #A05E79 #9AA05E #5EA085

square

#645EA0 #A05E79 #9AA05E #5EA085

split-complementary

#645EA0 #A0855E #79A05E

monochromatic

#343153 #4C4779 #645EA0 #8984B7 #AEABCE

Accessibility & contrast

On white

5.75

#645EA0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#645EA0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645EA0

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645EA0	#FFFFFF	#000000	##FFFFFF
##645EA0	1.00	5.75	3.65	5.75
#FFFFFF	5.75	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4868A3

Deuteranopia (green-blind)

#47649E

Tritanopia (blue-blind)

#546B77

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #645ea0;
/* rgb */ color: rgb(100, 94, 160);
/* oklch */ color: oklch(51.7% 0.103 286.4);

Tailwind

colors: {
  custom: {
    50: '#938bbc',
    500: '#645ea0',
    950: '#000000',
  },
}

SCSS

$custom: #645ea0;
$custom-light: #938bbc;
$custom-dark: #000000;

JSON

{
  "hex": "#645ea0",
  "rgb": {
    "r": 100,
    "g": 94,
    "b": 160
  },
  "hsl": {
    "h": 245.455,
    "s": 25.984,
    "l": 49.804
  },
  "oklch": {
    "l": 0.51719,
    "c": 0.10259,
    "h": 286.4
  },
  "luminance": 0.13253
}

Semantic roles & 50–950 ramp

primary

#645EA0

secondary

#B9BC9E

accent

#C265BA

background

#F9F8FB

surface

#F1F0F6

border

#CBCBD0

text

#0D0C12

muted

#7E7D81

Preview Lab

Preview with #645EA0

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

Preview Lab → · Contrast checker → · Palette generator →