#645EFF#645EFF

#645EFF is a mid, highly saturated blue. Relative luminance 0.179; OKLCH L 58.4% C 0.231 H 278.1°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#645EFF
RGB	rgb(100, 94, 255)
HSL	hsl(242, 100%, 68%)
HSV	hsv(242, 63%, 100%)
CMYK	cmyk(60.8%, 63.1%, 0%, 0%)
CIE-LAB	lab(49.41, 47.95, -79.40)
CIE-LCH	lch(49.41, 92.76, 301.13°)
OKLab	oklab(58.38% 0.0327 -0.2287)
OKLCH	oklch(58.38% 0.231 278.1)
XYZ	xyz(27.3024, 17.9326, 96.6109)
Luminance	0.1794 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645EFF #F9FF5E

analogous

#5EA8FF #645EFF #B45EFF

triadic

#645EFF #FF645E #5EFF64

tetradic

#645EFF #FF5EA8 #F9FF5E #5EFFB4

square

#645EFF #FF5EA8 #F9FF5E #5EFFB4

split-complementary

#645EFF #FFB45E #A8FF5E

monochromatic

#0800E3 #2921FF #645EFF #9F9BFF #DAD8FF

Accessibility & contrast

On white

4.58

#645EFF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.59

#645EFF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #645EFF

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645EFF	#FFFFFF	#000000	##000000
##645EFF	1.00	4.58	4.59	4.59
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.59	21.00	1.00	1.00
##000000	4.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#007CFF

Deuteranopia (green-blind)

#006FFC

Tritanopia (blue-blind)

#0087A6

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #645eff;
/* rgb */ color: rgb(100, 94, 255);
/* oklch */ color: oklch(58.4% 0.231 278.1);

Tailwind

colors: {
  custom: {
    50: '#9f8cff',
    500: '#645eff',
    950: '#000000',
  },
}

SCSS

$custom: #645eff;
$custom-light: #9f8cff;
$custom-dark: #000000;

JSON

{
  "hex": "#645eff",
  "rgb": {
    "r": 100,
    "g": 94,
    "b": 255
  },
  "hsl": {
    "h": 242.236,
    "s": 100,
    "l": 68.431
  },
  "oklch": {
    "l": 0.5838,
    "c": 0.23102,
    "h": 278.1
  },
  "luminance": 0.17935
}

Semantic roles & 50–950 ramp

primary

#645EFF

secondary

#F3F5C4

accent

#E600DD

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#100C18

muted

#7F7D86

Preview Lab

Preview with #645EFF

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

Preview Lab → · Contrast checker → · Palette generator →