#3964AA#3964AA

#3964AA is a mid, vivid blue. Relative luminance 0.129; OKLCH L 50.8% C 0.122 H 259.7°. Best body text is #FFFFFF at 5.87:1 contrast (WCAG AA passes).

Color values

HEX	#3964AA
RGB	rgb(57, 100, 170)
HSL	hsl(217, 50%, 45%)
HSV	hsv(217, 66%, 67%)
CMYK	cmyk(66.5%, 41.2%, 0%, 33.3%)
CIE-LAB	lab(42.59, 8.32, -41.98)
CIE-LCH	lch(42.59, 42.80, 281.21°)
OKLab	oklab(50.76% -0.0218 -0.1196)
OKLCH	oklch(50.76% 0.122 259.7)
XYZ	xyz(13.4976, 12.8852, 39.7982)
Luminance	0.1289 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3964AA #AA7F39

analogous

#399DAA #3964AA #4639AA

triadic

#3964AA #AA3964 #64AA39

tetradic

#3964AA #AA399D #AA7F39 #39AA46

square

#3964AA #AA399D #AA7F39 #39AA46

split-complementary

#3964AA #AA4639 #9DAA39

monochromatic

#1A2E4E #2A497C #3964AA #5983C7 #87A5D7

Accessibility & contrast

On white

5.87

#3964AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.58

#3964AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3964AA

5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3964AA	#FFFFFF	#000000	##FFFFFF
##3964AA	1.00	5.87	3.58	5.87
#FFFFFF	5.87	1.00	21.00	1.00
#000000	3.58	21.00	1.00	21.00
##FFFFFF	5.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#446AAD

Deuteranopia (green-blind)

#3360A9

Tritanopia (blue-blind)

#00747F

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #3964aa;
/* rgb */ color: rgb(57, 100, 170);
/* oklch */ color: oklch(50.8% 0.122 259.7);

Tailwind

colors: {
  custom: {
    50: '#7b8fc4',
    500: '#3964aa',
    950: '#000000',
  },
}

SCSS

$custom: #3964aa;
$custom-light: #7b8fc4;
$custom-dark: #000000;

JSON

{
  "hex": "#3964aa",
  "rgb": {
    "r": 57,
    "g": 100,
    "b": 170
  },
  "hsl": {
    "h": 217.168,
    "s": 49.78,
    "l": 44.51
  },
  "oklch": {
    "l": 0.50756,
    "c": 0.12159,
    "h": 259.7
  },
  "luminance": 0.12886
}

Semantic roles & 50–950 ramp

primary

#3964AA

secondary

#C1A77E

accent

#A44ED9

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0A0C12

muted

#7C7D81

Preview Lab

Preview with #3964AA

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

Preview Lab → · Contrast checker → · Palette generator →