#3F44BD#3F44BD

#3F44BD is a mid, vivid blue. Relative luminance 0.089; OKLCH L 46.1% C 0.186 H 274.6°. Best body text is #FFFFFF at 7.57:1 contrast (WCAG AA passes).

Color values

HEX	#3F44BD
RGB	rgb(63, 68, 189)
HSL	hsl(238, 50%, 49%)
HSV	hsv(238, 67%, 74%)
CMYK	cmyk(66.7%, 64%, 0%, 25.9%)
CIE-LAB	lab(35.72, 36.64, -64.24)
CIE-LCH	lch(35.72, 73.96, 299.70°)
OKLab	oklab(46.08% 0.0148 -0.1853)
OKLCH	oklch(46.08% 0.186 274.6)
XYZ	xyz(13.2993, 8.8639, 49.1443)
Luminance	0.0887 (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

#3F44BD #BDB83F

analogous

#3F83BD #3F44BD #793FBD

triadic

#3F44BD #BD3F44 #44BD3F

tetradic

#3F44BD #BD3F83 #BDB83F #3FBD79

square

#3F44BD #BD3F83 #BDB83F #3FBD79

split-complementary

#3F44BD #BD793F #83BD3F

monochromatic

#202361 #30338F #3F44BD #6B6FCE #999CDD

Accessibility & contrast

On white

7.57

#3F44BD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#3F44BD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F44BD

7.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F44BD	#FFFFFF	#000000	##FFFFFF
##3F44BD	1.00	7.57	2.77	7.57
#FFFFFF	7.57	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AC1

Deuteranopia (green-blind)

#004EBB

Tritanopia (blue-blind)

#00637A

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3f44bd;
/* rgb */ color: rgb(63, 68, 189);
/* oklch */ color: oklch(46.1% 0.186 274.6);

Tailwind

colors: {
  custom: {
    50: '#8378d2',
    500: '#3f44bd',
    950: '#000000',
  },
}

SCSS

$custom: #3f44bd;
$custom-light: #8378d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f44bd",
  "rgb": {
    "r": 63,
    "g": 68,
    "b": 189
  },
  "hsl": {
    "h": 237.619,
    "s": 50,
    "l": 49.412
  },
  "oklch": {
    "l": 0.4608,
    "c": 0.18591,
    "h": 274.6
  },
  "luminance": 0.08865
}

Semantic roles & 50–950 ramp

primary

#3F44BD

secondary

#C9C78F

accent

#D44EDA

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #3F44BD

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

Preview Lab → · Contrast checker → · Palette generator →