#645EC8#645EC8

#645EC8 is a mid, vivid blue. Relative luminance 0.149; OKLCH L 54.2% C 0.160 H 282.2°. Best body text is #FFFFFF at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#645EC8
RGB	rgb(100, 94, 200)
HSL	hsl(243, 49%, 58%)
HSV	hsv(243, 53%, 78%)
CMYK	cmyk(50%, 53%, 0%, 21.6%)
CIE-LAB	lab(45.47, 30.83, -54.70)
CIE-LCH	lch(45.47, 62.78, 299.41°)
OKLab	oklab(54.23% 0.0338 -0.1561)
OKLCH	oklch(54.23% 0.16 282.2)
XYZ	xyz(19.6804, 14.8838, 56.4682)
Luminance	0.1489 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645EC8 #C2C85E

analogous

#5E8DC8 #645EC8 #995EC8

triadic

#645EC8 #C8645E #5EC864

tetradic

#645EC8 #C85E8D #C2C85E #5EC899

square

#645EC8 #C85E8D #C2C85E #5EC899

split-complementary

#645EC8 #C8995E #8DC85E

monochromatic

#302C80 #423BAE #645EC8 #908CD8 #BCB9E7

Accessibility & contrast

On white

5.28

#645EC8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.98

#645EC8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645EC8

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645EC8	#FFFFFF	#000000	##FFFFFF
##645EC8	1.00	5.28	3.98	5.28
#FFFFFF	5.28	1.00	21.00	1.00
#000000	3.98	21.00	1.00	21.00
##FFFFFF	5.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#256FCC

Deuteranopia (green-blind)

#1C68C6

Tritanopia (blue-blind)

#3E758A

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #645ec8;
/* rgb */ color: rgb(100, 94, 200);
/* oklch */ color: oklch(54.2% 0.160 282.2);

Tailwind

colors: {
  custom: {
    50: '#978bd9',
    500: '#645ec8',
    950: '#000000',
  },
}

SCSS

$custom: #645ec8;
$custom-light: #978bd9;
$custom-dark: #000000;

JSON

{
  "hex": "#645ec8",
  "rgb": {
    "r": 100,
    "g": 94,
    "b": 200
  },
  "hsl": {
    "h": 243.396,
    "s": 49.074,
    "l": 57.647
  },
  "oklch": {
    "l": 0.54234,
    "c": 0.15969,
    "h": 282.2
  },
  "luminance": 0.14885
}

Semantic roles & 50–950 ramp

primary

#645EC8

secondary

#D4D6AC

accent

#D94FD1

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0C15

muted

#7E7D83

Preview Lab

Preview with #645EC8

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

Preview Lab → · Contrast checker → · Palette generator →