#3964CD#3964CD

#3964CD is a mid, vivid blue. Relative luminance 0.144; OKLCH L 53.1% C 0.170 H 264.5°. Best body text is #FFFFFF at 5.41:1 contrast (WCAG AA passes).

Color values

HEX	#3964CD
RGB	rgb(57, 100, 205)
HSL	hsl(223, 60%, 51%)
HSV	hsv(223, 72%, 80%)
CMYK	cmyk(72.2%, 51.2%, 0%, 19.6%)
CIE-LAB	lab(44.79, 21.13, -58.81)
CIE-LCH	lch(44.79, 62.49, 289.76°)
OKLab	oklab(53.15% -0.0162 -0.1691)
OKLCH	oklch(53.15% 0.17 264.5)
XYZ	xyz(17.2601, 14.3901, 59.6137)
Luminance	0.1439 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3964CD #CDA239

analogous

#39AECD #3964CD #5839CD

triadic

#3964CD #CD3964 #64CD39

tetradic

#3964CD #CD39AE #CDA239 #39CD58

square

#3964CD #CD39AE #CDA239 #39CD58

split-complementary

#3964CD #CD5839 #AECD39

monochromatic

#1C346F #284BA0 #3964CD #6A8AD9 #9BB1E6

Accessibility & contrast

On white

5.41

#3964CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.88

#3964CD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3964CD

5.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3964CD	#FFFFFF	#000000	##FFFFFF
##3964CD	1.00	5.41	3.88	5.41
#FFFFFF	5.41	1.00	21.00	1.00
#000000	3.88	21.00	1.00	21.00
##FFFFFF	5.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2171D1

Deuteranopia (green-blind)

#0064CB

Tritanopia (blue-blind)

#007D8F

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #3964cd;
/* rgb */ color: rgb(57, 100, 205);
/* oklch */ color: oklch(53.1% 0.170 264.5);

Tailwind

colors: {
  custom: {
    50: '#828fdd',
    500: '#3964cd',
    950: '#000000',
  },
}

SCSS

$custom: #3964cd;
$custom-light: #828fdd;
$custom-dark: #000000;

JSON

{
  "hex": "#3964cd",
  "rgb": {
    "r": 57,
    "g": 100,
    "b": 205
  },
  "hsl": {
    "h": 222.568,
    "s": 59.677,
    "l": 51.373
  },
  "oklch": {
    "l": 0.53148,
    "c": 0.16987,
    "h": 264.5
  },
  "luminance": 0.14392
}

Semantic roles & 50–950 ramp

primary

#3964CD

secondary

#D2BF90

accent

#B545E3

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3964CD

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

Preview Lab → · Contrast checker → · Palette generator →