#3968CB#3968CB

#3968CB is a mid, vivid blue. Relative luminance 0.151; OKLCH L 53.8% C 0.162 H 263.0°. Best body text is #FFFFFF at 5.23:1 contrast (WCAG AA passes).

Color values

HEX	#3968CB
RGB	rgb(57, 104, 203)
HSL	hsl(221, 58%, 51%)
HSV	hsv(221, 72%, 80%)
CMYK	cmyk(71.9%, 48.8%, 0%, 20.4%)
CIE-LAB	lab(45.74, 17.84, -56.12)
CIE-LCH	lch(45.74, 58.89, 287.63°)
OKLab	oklab(53.84% -0.0198 -0.1611)
OKLCH	oklch(53.84% 0.162 263)
XYZ	xyz(17.4133, 15.0804, 58.4814)
Luminance	0.1508 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3968CB #CB9C39

analogous

#39B1CB #3968CB #5339CB

triadic

#3968CB #CB3968 #68CB39

tetradic

#3968CB #CB39B1 #CB9C39 #39CB53

square

#3968CB #CB39B1 #CB9C39 #39CB53

split-complementary

#3968CB #CB5339 #B1CB39

monochromatic

#1D366D #294F9D #3968CB #698DD8 #9AB2E4

Accessibility & contrast

On white

5.23

#3968CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.02

#3968CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3968CB

5.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3968CB	#FFFFFF	#000000	##FFFFFF
##3968CB	1.00	5.23	4.02	5.23
#FFFFFF	5.23	1.00	21.00	1.00
#000000	4.02	21.00	1.00	21.00
##FFFFFF	5.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3073CF

Deuteranopia (green-blind)

#0066C9

Tritanopia (blue-blind)

#007F90

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #3968cb;
/* rgb */ color: rgb(57, 104, 203);
/* oklch */ color: oklch(53.8% 0.162 263.0);

Tailwind

colors: {
  custom: {
    50: '#8292db',
    500: '#3968cb',
    950: '#000000',
  },
}

SCSS

$custom: #3968cb;
$custom-light: #8292db;
$custom-dark: #000000;

JSON

{
  "hex": "#3968cb",
  "rgb": {
    "r": 57,
    "g": 104,
    "b": 203
  },
  "hsl": {
    "h": 220.685,
    "s": 58.4,
    "l": 50.98
  },
  "oklch": {
    "l": 0.53835,
    "c": 0.16232,
    "h": 263
  },
  "luminance": 0.15082
}

Semantic roles & 50–950 ramp

primary

#3968CB

secondary

#D0BB90

accent

#B046E2

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3968CB

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

Preview Lab → · Contrast checker → · Palette generator →