#3F44BC#3F44BC

#3F44BC is a mid, vivid blue. Relative luminance 0.088; OKLCH L 46.0% C 0.185 H 274.6°. Best body text is #FFFFFF at 7.60:1 contrast (WCAG AA passes).

Color values

HEX	#3F44BC
RGB	rgb(63, 68, 188)
HSL	hsl(238, 50%, 49%)
HSV	hsv(238, 66%, 74%)
CMYK	cmyk(66.5%, 63.8%, 0%, 26.3%)
CIE-LAB	lab(35.64, 36.30, -63.79)
CIE-LCH	lch(35.64, 73.40, 299.64°)
OKLab	oklab(45.99% 0.0149 -0.184)
OKLCH	oklch(45.99% 0.185 274.6)
XYZ	xyz(13.1911, 8.8207, 48.5746)
Luminance	0.0882 (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

#3F44BC #BCB73F

analogous

#3F83BC #3F44BC #793FBC

triadic

#3F44BC #BC3F44 #44BC3F

tetradic

#3F44BC #BC3F83 #BCB73F #3FBC79

square

#3F44BC #BC3F83 #BCB73F #3FBC79

split-complementary

#3F44BC #BC793F #83BC3F

monochromatic

#202360 #30338E #3F44BC #6B6FCD #999BDD

Accessibility & contrast

On white

7.60

#3F44BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#3F44BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F44BC

7.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F44BC	#FFFFFF	#000000	##FFFFFF
##3F44BC	1.00	7.60	2.76	7.60
#FFFFFF	7.60	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059C0

Deuteranopia (green-blind)

#004EBA

Tritanopia (blue-blind)

#00637A

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3f44bc;
/* rgb */ color: rgb(63, 68, 188);
/* oklch */ color: oklch(46.0% 0.185 274.6);

Tailwind

colors: {
  custom: {
    50: '#8378d1',
    500: '#3f44bc',
    950: '#000000',
  },
}

SCSS

$custom: #3f44bc;
$custom-light: #8378d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f44bc",
  "rgb": {
    "r": 63,
    "g": 68,
    "b": 188
  },
  "hsl": {
    "h": 237.6,
    "s": 49.801,
    "l": 49.216
  },
  "oklch": {
    "l": 0.45992,
    "c": 0.1846,
    "h": 274.6
  },
  "luminance": 0.08822
}

Semantic roles & 50–950 ramp

primary

#3F44BC

secondary

#C9C68E

accent

#D44ED9

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #3F44BC

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

Preview Lab → · Contrast checker → · Palette generator →