#645BC2#645BC2

#645BC2 is a mid, vivid blue. Relative luminance 0.141; OKLCH L 53.3% C 0.156 H 283.7°. Best body text is #FFFFFF at 5.50:1 contrast (WCAG AA passes).

Color values

HEX	#645BC2
RGB	rgb(100, 91, 194)
HSL	hsl(245, 46%, 56%)
HSV	hsv(245, 53%, 76%)
CMYK	cmyk(48.5%, 53.1%, 0%, 23.9%)
CIE-LAB	lab(44.36, 30.82, -53.03)
CIE-LCH	lch(44.36, 61.33, 300.16°)
OKLab	oklab(53.27% 0.0369 -0.1512)
OKLCH	oklch(53.27% 0.156 283.7)
XYZ	xyz(18.7313, 14.0856, 52.7603)
Luminance	0.1409 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645BC2 #B9C25B

analogous

#5B85C2 #645BC2 #975BC2

triadic

#645BC2 #C2645B #5BC264

tetradic

#645BC2 #C25B85 #B9C25B #5BC297

square

#645BC2 #C25B85 #B9C25B #5BC297

split-complementary

#645BC2 #C2975B #85C25B

monochromatic

#332C77 #463DA3 #645BC2 #8E88D3 #B8B4E3

Accessibility & contrast

On white

5.50

#645BC2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.82

#645BC2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645BC2

5.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645BC2	#FFFFFF	#000000	##FFFFFF
##645BC2	1.00	5.50	3.82	5.50
#FFFFFF	5.50	1.00	21.00	1.00
#000000	3.82	21.00	1.00	21.00
##FFFFFF	5.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#266CC6

Deuteranopia (green-blind)

#1F66C0

Tritanopia (blue-blind)

#437286

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #645bc2;
/* rgb */ color: rgb(100, 91, 194);
/* oklch */ color: oklch(53.3% 0.156 283.7);

Tailwind

colors: {
  custom: {
    50: '#9689d5',
    500: '#645bc2',
    950: '#000000',
  },
}

SCSS

$custom: #645bc2;
$custom-light: #9689d5;
$custom-dark: #000000;

JSON

{
  "hex": "#645bc2",
  "rgb": {
    "r": 100,
    "g": 91,
    "b": 194
  },
  "hsl": {
    "h": 245.243,
    "s": 45.778,
    "l": 55.882
  },
  "oklch": {
    "l": 0.53274,
    "c": 0.15563,
    "h": 283.7
  },
  "luminance": 0.14087
}

Semantic roles & 50–950 ramp

primary

#645BC2

secondary

#CED2A7

accent

#D552CA

background

#F9F8FD

surface

#F2F0FA

border

#CCCBD3

text

#0E0B14

muted

#7E7C83

Preview Lab

Preview with #645BC2

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

Preview Lab → · Contrast checker → · Palette generator →