#645AC0#645AC0

#645AC0 is a mid, vivid blue. Relative luminance 0.138; OKLCH L 53.0% C 0.154 H 284.3°. Best body text is #FFFFFF at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#645AC0
RGB	rgb(100, 90, 192)
HSL	hsl(246, 45%, 55%)
HSV	hsv(246, 53%, 75%)
CMYK	cmyk(47.9%, 53.1%, 0%, 24.7%)
CIE-LAB	lab(43.98, 30.82, -52.47)
CIE-LCH	lch(43.98, 60.85, 300.43°)
OKLab	oklab(52.96% 0.038 -0.1495)
OKLCH	oklch(52.96% 0.154 284.3)
XYZ	xyz(18.4233, 13.8265, 51.5570)
Luminance	0.1383 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645AC0 #B6C05A

analogous

#5A83C0 #645AC0 #975AC0

triadic

#645AC0 #C0645A #5AC064

tetradic

#645AC0 #C05A83 #B6C05A #5AC097

square

#645AC0 #C05A83 #B6C05A #5AC097

split-complementary

#645AC0 #C0975A #83C05A

monochromatic

#332C73 #473DA0 #645AC0 #8E86D1 #B7B3E2

Accessibility & contrast

On white

5.58

#645AC0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#645AC0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645AC0

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645AC0	#FFFFFF	#000000	##FFFFFF
##645AC0	1.00	5.58	3.77	5.58
#FFFFFF	5.58	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#266BC4

Deuteranopia (green-blind)

#2065BE

Tritanopia (blue-blind)

#447084

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #645ac0;
/* rgb */ color: rgb(100, 90, 192);
/* oklch */ color: oklch(53.0% 0.154 284.3);

Tailwind

colors: {
  custom: {
    50: '#9689d4',
    500: '#645ac0',
    950: '#000000',
  },
}

SCSS

$custom: #645ac0;
$custom-light: #9689d4;
$custom-dark: #000000;

JSON

{
  "hex": "#645ac0",
  "rgb": {
    "r": 100,
    "g": 90,
    "b": 192
  },
  "hsl": {
    "h": 245.882,
    "s": 44.737,
    "l": 55.294
  },
  "oklch": {
    "l": 0.52956,
    "c": 0.15429,
    "h": 284.3
  },
  "luminance": 0.13827
}

Semantic roles & 50–950 ramp

primary

#645AC0

secondary

#CCD0A6

accent

#D453C8

background

#F9F8FD

surface

#F2F0FA

border

#CCCBD3

text

#0E0B14

muted

#7E7C83

Preview Lab

Preview with #645AC0

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

Preview Lab → · Contrast checker → · Palette generator →