#3967CC#3967CC

#3967CC is a mid, vivid blue. Relative luminance 0.149; OKLCH L 53.7% C 0.165 H 263.4°. Best body text is #FFFFFF at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#3967CC
RGB	rgb(57, 103, 204)
HSL	hsl(221, 59%, 51%)
HSV	hsv(221, 72%, 80%)
CMYK	cmyk(72.1%, 49.5%, 0%, 20%)
CIE-LAB	lab(45.54, 18.84, -57.03)
CIE-LCH	lch(45.54, 60.06, 288.29°)
OKLab	oklab(53.7% -0.0188 -0.1638)
OKLCH	oklch(53.7% 0.165 263.4)
XYZ	xyz(17.4328, 14.9281, 59.0777)
Luminance	0.1493 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3967CC #CC9E39

analogous

#39B1CC #3967CC #5439CC

triadic

#3967CC #CC3967 #67CC39

tetradic

#3967CC #CC39B1 #CC9E39 #39CC54

square

#3967CC #CC39B1 #CC9E39 #39CC54

split-complementary

#3967CC #CC5439 #B1CC39

monochromatic

#1C366E #294E9F #3967CC #6A8CD9 #9AB2E5

Accessibility & contrast

On white

5.27

#3967CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.99

#3967CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3967CC

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3967CC	#FFFFFF	#000000	##FFFFFF
##3967CC	1.00	5.27	3.99	5.27
#FFFFFF	5.27	1.00	21.00	1.00
#000000	3.99	21.00	1.00	21.00
##FFFFFF	5.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C73D0

Deuteranopia (green-blind)

#0065CA

Tritanopia (blue-blind)

#007F90

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #3967cc;
/* rgb */ color: rgb(57, 103, 204);
/* oklch */ color: oklch(53.7% 0.165 263.4);

Tailwind

colors: {
  custom: {
    50: '#8291dc',
    500: '#3967cc',
    950: '#000000',
  },
}

SCSS

$custom: #3967cc;
$custom-light: #8291dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3967cc",
  "rgb": {
    "r": 57,
    "g": 103,
    "b": 204
  },
  "hsl": {
    "h": 221.224,
    "s": 59.036,
    "l": 51.176
  },
  "oklch": {
    "l": 0.53697,
    "c": 0.16489,
    "h": 263.4
  },
  "luminance": 0.1493
}

Semantic roles & 50–950 ramp

primary

#3967CC

secondary

#D1BD90

accent

#B146E2

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3967CC

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

Preview Lab → · Contrast checker → · Palette generator →