#645FA1#645FA1

#645FA1 is a mid, moderate blue. Relative luminance 0.135; OKLCH L 52.0% C 0.103 H 285.7°. Best body text is #FFFFFF at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#645FA1
RGB	rgb(100, 95, 161)
HSL	hsl(245, 26%, 50%)
HSV	hsv(245, 41%, 63%)
CMYK	cmyk(37.9%, 41%, 0%, 36.9%)
CIE-LAB	lab(43.46, 18.52, -35.11)
CIE-LCH	lch(43.46, 39.70, 297.80°)
OKLab	oklab(51.98% 0.0278 -0.0987)
OKLCH	oklch(51.98% 0.103 285.7)
XYZ	xyz(15.7790, 13.4664, 35.4792)
Luminance	0.1347 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645FA1 #9CA15F

analogous

#5F7BA1 #645FA1 #855FA1

triadic

#645FA1 #A1645F #5FA164

tetradic

#645FA1 #A15F7B #9CA15F #5FA185

square

#645FA1 #A15F7B #9CA15F #5FA185

split-complementary

#645FA1 #A1855F #7BA15F

monochromatic

#343154 #4C487B #645FA1 #8986B8 #AFACCE

Accessibility & contrast

On white

5.69

#645FA1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.69

#645FA1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645FA1

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645FA1	#FFFFFF	#000000	##FFFFFF
##645FA1	1.00	5.69	3.69	5.69
#FFFFFF	5.69	1.00	21.00	1.00
#000000	3.69	21.00	1.00	21.00
##FFFFFF	5.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4969A4

Deuteranopia (green-blind)

#48659F

Tritanopia (blue-blind)

#536C78

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #645fa1;
/* rgb */ color: rgb(100, 95, 161);
/* oklch */ color: oklch(52.0% 0.103 285.7);

Tailwind

colors: {
  custom: {
    50: '#938cbd',
    500: '#645fa1',
    950: '#000000',
  },
}

SCSS

$custom: #645fa1;
$custom-light: #938cbd;
$custom-dark: #000000;

JSON

{
  "hex": "#645fa1",
  "rgb": {
    "r": 100,
    "g": 95,
    "b": 161
  },
  "hsl": {
    "h": 244.545,
    "s": 25.984,
    "l": 50.196
  },
  "oklch": {
    "l": 0.51978,
    "c": 0.10252,
    "h": 285.7
  },
  "luminance": 0.13467
}

Semantic roles & 50–950 ramp

primary

#645FA1

secondary

#BABD9F

accent

#C265BB

background

#F9F8FB

surface

#F1F0F6

border

#CBCBD0

text

#0D0C12

muted

#7E7D81

Preview Lab

Preview with #645FA1

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

Preview Lab → · Contrast checker → · Palette generator →