#646ED0#646ED0

#646ED0 is a mid, vivid blue. Relative luminance 0.184; OKLCH L 57.8% C 0.149 H 276.3°. Best body text is #000000 at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#646ED0
RGB	rgb(100, 110, 208)
HSL	hsl(234, 53%, 60%)
HSV	hsv(234, 52%, 82%)
CMYK	cmyk(51.9%, 47.1%, 0%, 18.4%)
CIE-LAB	lab(49.99, 23.52, -52.03)
CIE-LCH	lch(49.99, 57.10, 294.33°)
OKLab	oklab(57.79% 0.0164 -0.1481)
OKLCH	oklch(57.79% 0.149 276.3)
XYZ	xyz(22.2130, 18.4139, 62.0460)
Luminance	0.1842 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646ED0 #D0C664

analogous

#64A4D0 #646ED0 #9064D0

triadic

#646ED0 #D0646E #6ED064

tetradic

#646ED0 #D064A4 #D0C664 #64D090

square

#646ED0 #D064A4 #D0C664 #64D090

split-complementary

#646ED0 #D09064 #A4D064

monochromatic

#2B348E #3946BD #646ED0 #939ADE #C2C6EC

Accessibility & contrast

On white

4.48

#646ED0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.68

#646ED0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646ED0

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646ED0	#FFFFFF	#000000	##000000
##646ED0	1.00	4.48	4.68	4.68
#FFFFFF	4.48	1.00	21.00	21.00
#000000	4.68	21.00	1.00	1.00
##000000	4.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#427BD4

Deuteranopia (green-blind)

#3673CE

Tritanopia (blue-blind)

#358395

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #646ed0;
/* rgb */ color: rgb(100, 110, 208);
/* oklch */ color: oklch(57.8% 0.149 276.3);

Tailwind

colors: {
  custom: {
    50: '#9797df',
    500: '#646ed0',
    950: '#000000',
  },
}

SCSS

$custom: #646ed0;
$custom-light: #9797df;
$custom-dark: #000000;

JSON

{
  "hex": "#646ed0",
  "rgb": {
    "r": 100,
    "g": 110,
    "b": 208
  },
  "hsl": {
    "h": 234.444,
    "s": 53.465,
    "l": 60.392
  },
  "oklch": {
    "l": 0.57793,
    "c": 0.14901,
    "h": 276.3
  },
  "luminance": 0.18415
}

Semantic roles & 50–950 ramp

primary

#646ED0

secondary

#DDD9B3

accent

#B225C1

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0D15

muted

#7E7E83

Preview Lab

Preview with #646ED0

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

Preview Lab → · Contrast checker → · Palette generator →