#3F44BF#3F44BF

#3F44BF is a mid, vivid blue. Relative luminance 0.090; OKLCH L 46.3% C 0.189 H 274.5°. Best body text is #FFFFFF at 7.53:1 contrast (WCAG AA passes).

Color values

HEX	#3F44BF
RGB	rgb(63, 68, 191)
HSL	hsl(238, 50%, 50%)
HSV	hsv(238, 67%, 75%)
CMYK	cmyk(67%, 64.4%, 0%, 25.1%)
CIE-LAB	lab(35.89, 37.33, -65.14)
CIE-LCH	lch(35.89, 75.07, 299.81°)
OKLab	oklab(46.26% 0.0147 -0.1879)
OKLCH	oklch(46.26% 0.189 274.5)
XYZ	xyz(13.5179, 8.9514, 50.2955)
Luminance	0.0895 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F44BF #BFBA3F

analogous

#3F84BF #3F44BF #7A3FBF

triadic

#3F44BF #BF3F44 #44BF3F

tetradic

#3F44BF #BF3F84 #BFBA3F #3FBF7A

square

#3F44BF #BF3F84 #BFBA3F #3FBF7A

split-complementary

#3F44BF #BF7A3F #84BF3F

monochromatic

#212363 #303491 #3F44BF #6D70CF #9B9DDE

Accessibility & contrast

On white

7.53

#3F44BF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#3F44BF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F44BF

7.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F44BF	#FFFFFF	#000000	##FFFFFF
##3F44BF	1.00	7.53	2.79	7.53
#FFFFFF	7.53	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AC3

Deuteranopia (green-blind)

#004FBD

Tritanopia (blue-blind)

#00647B

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3f44bf;
/* rgb */ color: rgb(63, 68, 191);
/* oklch */ color: oklch(46.3% 0.189 274.5);

Tailwind

colors: {
  custom: {
    50: '#8478d3',
    500: '#3f44bf',
    950: '#000000',
  },
}

SCSS

$custom: #3f44bf;
$custom-light: #8478d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3f44bf",
  "rgb": {
    "r": 63,
    "g": 68,
    "b": 191
  },
  "hsl": {
    "h": 237.656,
    "s": 50.394,
    "l": 49.804
  },
  "oklch": {
    "l": 0.46256,
    "c": 0.18852,
    "h": 274.5
  },
  "luminance": 0.08953
}

Semantic roles & 50–950 ramp

primary

#3F44BF

secondary

#CAC890

accent

#D44EDA

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #3F44BF

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

Preview Lab → · Contrast checker → · Palette generator →