#645ACE#645ACE

#645ACE is a mid, vivid blue. Relative luminance 0.145; OKLCH L 53.9% C 0.173 H 282.8°. Best body text is #FFFFFF at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#645ACE
RGB	rgb(100, 90, 206)
HSL	hsl(245, 54%, 58%)
HSV	hsv(245, 56%, 81%)
CMYK	cmyk(51.5%, 56.3%, 0%, 19.2%)
CIE-LAB	lab(44.91, 35.10, -59.06)
CIE-LCH	lch(44.91, 68.70, 300.72°)
OKLab	oklab(53.94% 0.0384 -0.1689)
OKLCH	oklch(53.94% 0.173 282.8)
XYZ	xyz(20.0489, 14.4768, 60.1184)
Luminance	0.1448 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645ACE #C4CE5A

analogous

#5A8ACE #645ACE #9E5ACE

triadic

#645ACE #CE645A #5ACE64

tetradic

#645ACE #CE5A8A #C4CE5A #5ACE9E

square

#645ACE #CE5A8A #C4CE5A #5ACE9E

split-complementary

#645ACE #CE9E5A #8ACE5A

monochromatic

#302886 #4136B5 #645ACE #9089DC #BDB8EA

Accessibility & contrast

On white

5.39

#645ACE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.90

#645ACE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645ACE

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645ACE	#FFFFFF	#000000	##FFFFFF
##645ACE	1.00	5.39	3.90	5.39
#FFFFFF	5.39	1.00	21.00	1.00
#000000	3.90	21.00	1.00	21.00
##FFFFFF	5.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#026ED2

Deuteranopia (green-blind)

#0066CC

Tritanopia (blue-blind)

#3A758B

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #645ace;
/* rgb */ color: rgb(100, 90, 206);
/* oklch */ color: oklch(53.9% 0.173 282.8);

Tailwind

colors: {
  custom: {
    50: '#9889de',
    500: '#645ace',
    950: '#000000',
  },
}

SCSS

$custom: #645ace;
$custom-light: #9889de;
$custom-dark: #000000;

JSON

{
  "hex": "#645ace",
  "rgb": {
    "r": 100,
    "g": 90,
    "b": 206
  },
  "hsl": {
    "h": 245.172,
    "s": 54.206,
    "l": 58.039
  },
  "oklch": {
    "l": 0.5394,
    "c": 0.17324,
    "h": 282.8
  },
  "luminance": 0.14478
}

Semantic roles & 50–950 ramp

primary

#645ACE

secondary

#D5D9AB

accent

#DE4AD1

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0B15

muted

#7E7C83

Preview Lab

Preview with #645ACE

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

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