#3963AF#3963AF

#3963AF is a mid, vivid blue. Relative luminance 0.129; OKLCH L 50.9% C 0.130 H 261.2°. Best body text is #FFFFFF at 5.87:1 contrast (WCAG AA passes).

Color values

HEX	#3963AF
RGB	rgb(57, 99, 175)
HSL	hsl(219, 51%, 45%)
HSV	hsv(219, 67%, 69%)
CMYK	cmyk(67.4%, 43.4%, 0%, 31.4%)
CIE-LAB	lab(42.59, 10.77, -44.92)
CIE-LCH	lch(42.59, 46.19, 283.49°)
OKLab	oklab(50.85% -0.0198 -0.1282)
OKLCH	oklch(50.85% 0.13 261.2)
XYZ	xyz(13.8843, 12.8873, 42.3049)
Luminance	0.1289 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3963AF #AF8539

analogous

#399EAF #3963AF #4A39AF

triadic

#3963AF #AF3963 #63AF39

tetradic

#3963AF #AF399E #AF8539 #39AF4A

square

#3963AF #AF399E #AF8539 #39AF4A

split-complementary

#3963AF #AF4A39 #9EAF39

monochromatic

#1B2F53 #2A4981 #3963AF #5B83CA #8AA6D9

Accessibility & contrast

On white

5.87

#3963AF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.58

#3963AF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3963AF

5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3963AF	#FFFFFF	#000000	##FFFFFF
##3963AF	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)

#3F6AB2

Deuteranopia (green-blind)

#2C5FAD

Tritanopia (blue-blind)

#007480

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #3963af;
/* rgb */ color: rgb(57, 99, 175);
/* oklch */ color: oklch(50.9% 0.130 261.2);

Tailwind

colors: {
  custom: {
    50: '#7c8ec7',
    500: '#3963af',
    950: '#000000',
  },
}

SCSS

$custom: #3963af;
$custom-light: #7c8ec7;
$custom-dark: #000000;

JSON

{
  "hex": "#3963af",
  "rgb": {
    "r": 57,
    "g": 99,
    "b": 175
  },
  "hsl": {
    "h": 218.644,
    "s": 50.862,
    "l": 45.49
  },
  "oklch": {
    "l": 0.50853,
    "c": 0.12976,
    "h": 261.2
  },
  "luminance": 0.12889
}

Semantic roles & 50–950 ramp

primary

#3963AF

secondary

#C3AB81

accent

#A84DDA

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #3963AF

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

Preview Lab → · Contrast checker → · Palette generator →