#645EF0#645EF0

#645EF0 is a mid, highly saturated blue. Relative luminance 0.170; OKLCH L 57.2% C 0.212 H 279.1°. Best body text is #FFFFFF at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#645EF0
RGB	rgb(100, 94, 240)
HSL	hsl(242, 83%, 65%)
HSV	hsv(242, 61%, 94%)
CMYK	cmyk(58.3%, 60.8%, 0%, 5.9%)
CIE-LAB	lab(48.27, 43.27, -72.91)
CIE-LCH	lch(48.27, 84.78, 300.69°)
OKLab	oklab(57.18% 0.0337 -0.2096)
OKLCH	oklch(57.18% 0.212 279.1)
XYZ	xyz(24.9814, 17.0042, 84.3869)
Luminance	0.1701 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645EF0 #EAF05E

analogous

#5EA1F0 #645EF0 #AD5EF0

triadic

#645EF0 #F0645E #5EF064

tetradic

#645EF0 #F05EA1 #EAF05E #5EF0AD

square

#645EF0 #F05EA1 #EAF05E #5EF0AD

split-complementary

#645EF0 #F0AD5E #A1F05E

monochromatic

#1912C2 #2E26EB #645EF0 #9A96F5 #D0CEFA

Accessibility & contrast

On white

4.77

#645EF0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.40

#645EF0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645EF0

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645EF0	#FFFFFF	#000000	##FFFFFF
##645EF0	1.00	4.77	4.40	4.77
#FFFFFF	4.77	1.00	21.00	1.00
#000000	4.40	21.00	1.00	21.00
##FFFFFF	4.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0078F5

Deuteranopia (green-blind)

#006DED

Tritanopia (blue-blind)

#00829E

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #645ef0;
/* rgb */ color: rgb(100, 94, 240);
/* oklch */ color: oklch(57.2% 0.212 279.1);

Tailwind

colors: {
  custom: {
    50: '#9d8cf6',
    500: '#645ef0',
    950: '#000000',
  },
}

SCSS

$custom: #645ef0;
$custom-light: #9d8cf6;
$custom-dark: #000000;

JSON

{
  "hex": "#645ef0",
  "rgb": {
    "r": 100,
    "g": 94,
    "b": 240
  },
  "hsl": {
    "h": 242.466,
    "s": 82.955,
    "l": 65.49
  },
  "oklch": {
    "l": 0.57182,
    "c": 0.21232,
    "h": 279.1
  },
  "luminance": 0.17006
}

Semantic roles & 50–950 ramp

primary

#645EF0

secondary

#EBEDBC

accent

#DF06D6

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#100C17

muted

#7F7D85

Preview Lab

Preview with #645EF0

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

Preview Lab → · Contrast checker → · Palette generator →