#3963D4#3963D4

#3963D4 is a mid, vivid blue. Relative luminance 0.145; OKLCH L 53.5% C 0.180 H 265.3°. Best body text is #FFFFFF at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#3963D4
RGB	rgb(57, 99, 212)
HSL	hsl(224, 64%, 53%)
HSV	hsv(224, 73%, 83%)
CMYK	cmyk(73.1%, 53.3%, 0%, 16.9%)
CIE-LAB	lab(45.00, 24.33, -62.47)
CIE-LCH	lch(45.00, 67.04, 291.28°)
OKLab	oklab(53.47% -0.0147 -0.1799)
OKLCH	oklch(53.47% 0.18 265.3)
XYZ	xyz(18.0287, 14.5451, 64.1319)
Luminance	0.1455 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3963D4 #D4AA39

analogous

#39B0D4 #3963D4 #5D39D4

triadic

#3963D4 #D43963 #63D439

tetradic

#3963D4 #D439B0 #D4AA39 #39D45D

square

#3963D4 #D439B0 #D4AA39 #39D45D

split-complementary

#3963D4 #D45D39 #B0D439

monochromatic

#1A3478 #2549AB #3963D4 #6B8BDF #9EB2EA

Accessibility & contrast

On white

5.37

#3963D4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.91

#3963D4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3963D4

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3963D4	#FFFFFF	#000000	##FFFFFF
##3963D4	1.00	5.37	3.91	5.37
#FFFFFF	5.37	1.00	21.00	1.00
#000000	3.91	21.00	1.00	21.00
##FFFFFF	5.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0972D8

Deuteranopia (green-blind)

#0064D2

Tritanopia (blue-blind)

#007E92

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #3963d4;
/* rgb */ color: rgb(57, 99, 212);
/* oklch */ color: oklch(53.5% 0.180 265.3);

Tailwind

colors: {
  custom: {
    50: '#848ee2',
    500: '#3963d4',
    950: '#000000',
  },
}

SCSS

$custom: #3963d4;
$custom-light: #848ee2;
$custom-dark: #000000;

JSON

{
  "hex": "#3963d4",
  "rgb": {
    "r": 57,
    "g": 99,
    "b": 212
  },
  "hsl": {
    "h": 223.742,
    "s": 64.315,
    "l": 52.745
  },
  "oklch": {
    "l": 0.53467,
    "c": 0.18048,
    "h": 265.3
  },
  "luminance": 0.14547
}

Semantic roles & 50–950 ramp

primary

#3963D4

secondary

#D6C493

accent

#BA40E7

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3963D4

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

Preview Lab → · Contrast checker → · Palette generator →