#645FFD#645FFD

#645FFD is a mid, highly saturated blue. Relative luminance 0.180; OKLCH L 58.4% C 0.227 H 278.1°. Best body text is #000000 at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#645FFD
RGB	rgb(100, 95, 253)
HSL	hsl(242, 98%, 68%)
HSV	hsv(242, 62%, 99%)
CMYK	cmyk(60.5%, 62.5%, 0%, 0.8%)
CIE-LAB	lab(49.48, 46.75, -78.19)
CIE-LCH	lch(49.48, 91.10, 300.88°)
OKLab	oklab(58.38% 0.032 -0.2251)
OKLCH	oklch(58.38% 0.227 278.1)
XYZ	xyz(27.0717, 17.9835, 94.9540)
Luminance	0.1799 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645FFD #F8FD5F

analogous

#5FA9FD #645FFD #B35FFD

triadic

#645FFD #FD645F #5FFD64

tetradic

#645FFD #FD5FA9 #F8FD5F #5FFDB3

square

#645FFD #FD5FA9 #F8FD5F #5FFDB3

split-complementary

#645FFD #FDB35F #A9FD5F

monochromatic

#0A03DF #2923FC #645FFD #9F9BFE #D9D8FF

Accessibility & contrast

On white

4.57

#645FFD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.60

#645FFD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #645FFD

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645FFD	#FFFFFF	#000000	##000000
##645FFD	1.00	4.57	4.60	4.60
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.60	21.00	1.00	1.00
##000000	4.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#007CFF

Deuteranopia (green-blind)

#006FFA

Tritanopia (blue-blind)

#0087A5

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #645ffd;
/* rgb */ color: rgb(100, 95, 253);
/* oklch */ color: oklch(58.4% 0.227 278.1);

Tailwind

colors: {
  custom: {
    50: '#9f8dff',
    500: '#645ffd',
    950: '#000000',
  },
}

SCSS

$custom: #645ffd;
$custom-light: #9f8dff;
$custom-dark: #000000;

JSON

{
  "hex": "#645ffd",
  "rgb": {
    "r": 100,
    "g": 95,
    "b": 253
  },
  "hsl": {
    "h": 241.899,
    "s": 97.531,
    "l": 68.235
  },
  "oklch": {
    "l": 0.58376,
    "c": 0.2274,
    "h": 278.1
  },
  "luminance": 0.17986
}

Semantic roles & 50–950 ramp

primary

#645FFD

secondary

#F2F4C4

accent

#E600DE

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#100C18

muted

#7F7D86

Preview Lab

Preview with #645FFD

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

Preview Lab → · Contrast checker → · Palette generator →