#645EA1#645EA1

#645EA1 is a mid, moderate blue. Relative luminance 0.133; OKLCH L 51.8% C 0.104 H 286.3°. Best body text is #FFFFFF at 5.74:1 contrast (WCAG AA passes).

Color values

HEX	#645EA1
RGB	rgb(100, 94, 161)
HSL	hsl(245, 26%, 50%)
HSV	hsv(245, 42%, 63%)
CMYK	cmyk(37.9%, 41.6%, 0%, 36.9%)
CIE-LAB	lab(43.19, 19.14, -35.53)
CIE-LCH	lch(43.19, 40.36, 298.31°)
OKLab	oklab(51.78% 0.0291 -0.0999)
OKLCH	oklch(51.78% 0.104 286.3)
XYZ	xyz(15.6895, 13.2874, 35.4494)
Luminance	0.1329 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645EA1 #9BA15E

analogous

#5E7AA1 #645EA1 #855EA1

triadic

#645EA1 #A1645E #5EA164

tetradic

#645EA1 #A15E7A #9BA15E #5EA185

square

#645EA1 #A15E7A #9BA15E #5EA185

split-complementary

#645EA1 #A1855E #7AA15E

monochromatic

#343154 #4C477A #645EA1 #8985B8 #AEABCE

Accessibility & contrast

On white

5.74

#645EA1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.66

#645EA1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645EA1

5.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645EA1	#FFFFFF	#000000	##FFFFFF
##645EA1	1.00	5.74	3.66	5.74
#FFFFFF	5.74	1.00	21.00	1.00
#000000	3.66	21.00	1.00	21.00
##FFFFFF	5.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4868A4

Deuteranopia (green-blind)

#46649F

Tritanopia (blue-blind)

#546B78

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #645ea1;
/* rgb */ color: rgb(100, 94, 161);
/* oklch */ color: oklch(51.8% 0.104 286.3);

Tailwind

colors: {
  custom: {
    50: '#938bbd',
    500: '#645ea1',
    950: '#000000',
  },
}

SCSS

$custom: #645ea1;
$custom-light: #938bbd;
$custom-dark: #000000;

JSON

{
  "hex": "#645ea1",
  "rgb": {
    "r": 100,
    "g": 94,
    "b": 161
  },
  "hsl": {
    "h": 245.373,
    "s": 26.275,
    "l": 50
  },
  "oklch": {
    "l": 0.51776,
    "c": 0.10406,
    "h": 286.3
  },
  "luminance": 0.13288
}

Semantic roles & 50–950 ramp

primary

#645EA1

secondary

#BABC9E

accent

#C365BA

background

#F9F8FB

surface

#F1F0F6

border

#CBCBD0

text

#0D0C12

muted

#7E7D81

Preview Lab

Preview with #645EA1

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

Preview Lab → · Contrast checker → · Palette generator →