#646CCD#646CCD

#646CCD is a mid, vivid blue. Relative luminance 0.178; OKLCH L 57.2% C 0.147 H 277.1°. Best body text is #FFFFFF at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#646CCD
RGB	rgb(100, 108, 205)
HSL	hsl(235, 51%, 60%)
HSV	hsv(235, 51%, 80%)
CMYK	cmyk(51.2%, 47.3%, 0%, 19.6%)
CIE-LAB	lab(49.30, 23.81, -51.42)
CIE-LCH	lch(49.30, 56.67, 294.84°)
OKLab	oklab(57.21% 0.0183 -0.1463)
OKLCH	oklch(57.21% 0.147 277.1)
XYZ	xyz(21.6341, 17.8409, 60.0494)
Luminance	0.1784 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646CCD #CDC564

analogous

#64A0CD #646CCD #9164CD

triadic

#646CCD #CD646C #6CCD64

tetradic

#646CCD #CD64A0 #CDC564 #64CD91

square

#646CCD #CD64A0 #CDC564 #64CD91

split-complementary

#646CCD #CD9164 #A0CD64

monochromatic

#2D348A #3B45B8 #646CCD #9298DC #C1C4EB

Accessibility & contrast

On white

4.60

#646CCD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.57

#646CCD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #646CCD

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646CCD	#FFFFFF	#000000	##FFFFFF
##646CCD	1.00	4.60	4.57	4.60
#FFFFFF	4.60	1.00	21.00	1.00
#000000	4.57	21.00	1.00	21.00
##FFFFFF	4.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#417AD1

Deuteranopia (green-blind)

#3671CB

Tritanopia (blue-blind)

#388193

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #646ccd;
/* rgb */ color: rgb(100, 108, 205);
/* oklch */ color: oklch(57.2% 0.147 277.1);

Tailwind

colors: {
  custom: {
    50: '#9796dd',
    500: '#646ccd',
    950: '#000000',
  },
}

SCSS

$custom: #646ccd;
$custom-light: #9796dd;
$custom-dark: #000000;

JSON

{
  "hex": "#646ccd",
  "rgb": {
    "r": 100,
    "g": 108,
    "b": 205
  },
  "hsl": {
    "h": 235.429,
    "s": 51.22,
    "l": 59.804
  },
  "oklch": {
    "l": 0.57212,
    "c": 0.14749,
    "h": 277.1
  },
  "luminance": 0.17842
}

Semantic roles & 50–950 ramp

primary

#646CCD

secondary

#DBD8B2

accent

#D04DDB

background

#F9F9FD

surface

#F2F1FB

border

#CCCBD4

text

#0E0D15

muted

#7E7E83

Preview Lab

Preview with #646CCD

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

Preview Lab → · Contrast checker → · Palette generator →