#645DFE#645DFE

#645DFE is a mid, highly saturated blue. Relative luminance 0.177; OKLCH L 58.1% C 0.231 H 278.4°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#645DFE
RGB	rgb(100, 93, 254)
HSL	hsl(243, 99%, 68%)
HSV	hsv(243, 63%, 100%)
CMYK	cmyk(60.6%, 63.4%, 0%, 0.4%)
CIE-LAB	lab(49.12, 48.21, -79.33)
CIE-LCH	lch(49.12, 92.83, 301.29°)
OKLab	oklab(58.14% 0.0335 -0.2285)
OKLCH	oklch(58.14% 0.231 278.4)
XYZ	xyz(27.0535, 17.6917, 95.7359)
Luminance	0.1769 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645DFE #F7FE5D

analogous

#5DA6FE #645DFE #B55DFE

triadic

#645DFE #FE645D #5DFE64

tetradic

#645DFE #FE5DA6 #F7FE5D #5DFEB5

square

#645DFE #FE5DA6 #F7FE5D #5DFEB5

split-complementary

#645DFE #FEB55D #A6FE5D

monochromatic

#0B01DF #2A20FE #645DFE #9E9AFE #D8D7FF

Accessibility & contrast

On white

4.63

#645DFE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#645DFE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #645DFE

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645DFE	#FFFFFF	#000000	##FFFFFF
##645DFE	1.00	4.63	4.54	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#007BFF

Deuteranopia (green-blind)

#006EFB

Tritanopia (blue-blind)

#0086A5

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #645dfe;
/* rgb */ color: rgb(100, 93, 254);
/* oklch */ color: oklch(58.1% 0.231 278.4);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#645dfe",
  "rgb": {
    "r": 100,
    "g": 93,
    "b": 254
  },
  "hsl": {
    "h": 242.609,
    "s": 98.773,
    "l": 68.039
  },
  "oklch": {
    "l": 0.58141,
    "c": 0.23093,
    "h": 278.4
  },
  "luminance": 0.17694
}

Semantic roles & 50–950 ramp

primary

#645DFE

secondary

#F2F4C3

accent

#E600DC

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#100C18

muted

#7F7D86

Preview Lab

Preview with #645DFE

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

Preview Lab → · Contrast checker → · Palette generator →