#645BE0#645BE0

#645BE0 is a mid, vivid blue. Relative luminance 0.156; OKLCH L 55.4% C 0.196 H 280.9°. Best body text is #FFFFFF at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#645BE0
RGB	rgb(100, 91, 224)
HSL	hsl(244, 68%, 62%)
HSV	hsv(244, 59%, 88%)
CMYK	cmyk(55.4%, 59.4%, 0%, 12.2%)
CIE-LAB	lab(46.41, 40.06, -66.91)
CIE-LCH	lch(46.41, 77.98, 300.91°)
OKLab	oklab(55.45% 0.0371 -0.192)
OKLCH	oklch(55.45% 0.196 280.9)
XYZ	xyz(22.4470, 15.5719, 72.3294)
Luminance	0.1557 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645BE0 #D7E05B

analogous

#5B95E0 #645BE0 #A75BE0

triadic

#645BE0 #E0645B #5BE064

tetradic

#645BE0 #E05B95 #D7E05B #5BE0A7

square

#645BE0 #E05B95 #D7E05B #5BE0A7

split-complementary

#645BE0 #E0A75B #95E05B

monochromatic

#281FA2 #3428D5 #645BE0 #958EEA #C5C2F3

Accessibility & contrast

On white

5.10

#645BE0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.11

#645BE0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645BE0

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645BE0	#FFFFFF	#000000	##FFFFFF
##645BE0	1.00	5.10	4.11	5.10
#FFFFFF	5.10	1.00	21.00	1.00
#000000	4.11	21.00	1.00	21.00
##FFFFFF	5.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0073E4

Deuteranopia (green-blind)

#0069DD

Tritanopia (blue-blind)

#257B95

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #645be0;
/* rgb */ color: rgb(100, 91, 224);
/* oklch */ color: oklch(55.4% 0.196 280.9);

Tailwind

colors: {
  custom: {
    50: '#9a8aeb',
    500: '#645be0',
    950: '#000000',
  },
}

SCSS

$custom: #645be0;
$custom-light: #9a8aeb;
$custom-dark: #000000;

JSON

{
  "hex": "#645be0",
  "rgb": {
    "r": 100,
    "g": 91,
    "b": 224
  },
  "hsl": {
    "h": 244.06,
    "s": 68.205,
    "l": 61.765
  },
  "oklch": {
    "l": 0.55447,
    "c": 0.19557,
    "h": 280.9
  },
  "luminance": 0.15573
}

Semantic roles & 50–950 ramp

primary

#645BE0

secondary

#E1E4B3

accent

#D015C4

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0B16

muted

#7F7C84

Preview Lab

Preview with #645BE0

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

Preview Lab → · Contrast checker → · Palette generator →