#645DF0#645DF0

#645DF0 is a mid, highly saturated blue. Relative luminance 0.168; OKLCH L 57.0% C 0.214 H 279.3°. Best body text is #FFFFFF at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#645DF0
RGB	rgb(100, 93, 240)
HSL	hsl(243, 83%, 65%)
HSV	hsv(243, 61%, 94%)
CMYK	cmyk(58.3%, 61.2%, 0%, 5.9%)
CIE-LAB	lab(48.04, 43.86, -73.27)
CIE-LCH	lch(48.04, 85.40, 300.90°)
OKLab	oklab(57.02% 0.0346 -0.2107)
OKLCH	oklch(57.02% 0.214 279.3)
XYZ	xyz(24.8931, 16.8275, 84.3575)
Luminance	0.1683 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645DF0 #E9F05D

analogous

#5DA0F0 #645DF0 #AD5DF0

triadic

#645DF0 #F0645D #5DF064

tetradic

#645DF0 #F05DA0 #E9F05D #5DF0AD

square

#645DF0 #F05DA0 #E9F05D #5DF0AD

split-complementary

#645DF0 #F0AD5D #A0F05D

monochromatic

#1A12C1 #2E25EB #645DF0 #9A95F5 #CFCDFA

Accessibility & contrast

On white

4.81

#645DF0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.37

#645DF0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645DF0

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645DF0	#FFFFFF	#000000	##FFFFFF
##645DF0	1.00	4.81	4.37	4.81
#FFFFFF	4.81	1.00	21.00	1.00
#000000	4.37	21.00	1.00	21.00
##FFFFFF	4.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0078F5

Deuteranopia (green-blind)

#006CED

Tritanopia (blue-blind)

#00819E

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #645df0;
/* rgb */ color: rgb(100, 93, 240);
/* oklch */ color: oklch(57.0% 0.214 279.3);

Tailwind

colors: {
  custom: {
    50: '#9d8bf6',
    500: '#645df0',
    950: '#000000',
  },
}

SCSS

$custom: #645df0;
$custom-light: #9d8bf6;
$custom-dark: #000000;

JSON

{
  "hex": "#645df0",
  "rgb": {
    "r": 100,
    "g": 93,
    "b": 240
  },
  "hsl": {
    "h": 242.857,
    "s": 83.051,
    "l": 65.294
  },
  "oklch": {
    "l": 0.57018,
    "c": 0.21352,
    "h": 279.3
  },
  "luminance": 0.16829
}

Semantic roles & 50–950 ramp

primary

#645DF0

secondary

#EBEDBC

accent

#DF06D5

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#100C17

muted

#7F7D85

Preview Lab

Preview with #645DF0

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

Preview Lab → · Contrast checker → · Palette generator →