#3963D3#3963D3

#3963D3 is a mid, vivid blue. Relative luminance 0.145; OKLCH L 53.4% C 0.179 H 265.3°. Best body text is #FFFFFF at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#3963D3
RGB	rgb(57, 99, 211)
HSL	hsl(224, 64%, 53%)
HSV	hsv(224, 73%, 83%)
CMYK	cmyk(73%, 53.1%, 0%, 17.3%)
CIE-LAB	lab(44.93, 23.97, -62.01)
CIE-LCH	lch(44.93, 66.48, 291.13°)
OKLab	oklab(53.39% -0.0148 -0.1785)
OKLCH	oklch(53.39% 0.179 265.3)
XYZ	xyz(17.9029, 14.4948, 63.4696)
Luminance	0.1450 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3963D3 #D3A939

analogous

#39B0D3 #3963D3 #5C39D3

triadic

#3963D3 #D33963 #63D339

tetradic

#3963D3 #D339B0 #D3A939 #39D35C

square

#3963D3 #D339B0 #D3A939 #39D35C

split-complementary

#3963D3 #D35C39 #B0D339

monochromatic

#1A3477 #2649A9 #3963D3 #6B8ADE #9DB2E9

Accessibility & contrast

On white

5.39

#3963D3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.90

#3963D3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3963D3

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3963D3	#FFFFFF	#000000	##FFFFFF
##3963D3	1.00	5.39	3.90	5.39
#FFFFFF	5.39	1.00	21.00	1.00
#000000	3.90	21.00	1.00	21.00
##FFFFFF	5.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D72D7

Deuteranopia (green-blind)

#0064D1

Tritanopia (blue-blind)

#007E91

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #3963d3;
/* rgb */ color: rgb(57, 99, 211);
/* oklch */ color: oklch(53.4% 0.179 265.3);

Tailwind

colors: {
  custom: {
    50: '#838ee1',
    500: '#3963d3',
    950: '#000000',
  },
}

SCSS

$custom: #3963d3;
$custom-light: #838ee1;
$custom-dark: #000000;

JSON

{
  "hex": "#3963d3",
  "rgb": {
    "r": 57,
    "g": 99,
    "b": 211
  },
  "hsl": {
    "h": 223.636,
    "s": 63.636,
    "l": 52.549
  },
  "oklch": {
    "l": 0.53392,
    "c": 0.17914,
    "h": 265.3
  },
  "luminance": 0.14497
}

Semantic roles & 50–950 ramp

primary

#3963D3

secondary

#D5C392

accent

#BA41E7

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3963D3

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

Preview Lab → · Contrast checker → · Palette generator →