#3F44C6#3F44C6

#3F44C6 is a mid, vivid blue. Relative luminance 0.093; OKLCH L 46.9% C 0.198 H 274.1°. Best body text is #FFFFFF at 7.36:1 contrast (WCAG AA passes).

Color values

HEX	#3F44C6
RGB	rgb(63, 68, 198)
HSL	hsl(238, 54%, 51%)
HSV	hsv(238, 68%, 78%)
CMYK	cmyk(68.2%, 65.7%, 0%, 22.4%)
CIE-LAB	lab(36.49, 39.71, -68.24)
CIE-LCH	lch(36.49, 78.95, 300.19°)
OKLab	oklab(46.88% 0.0141 -0.197)
OKLCH	oklch(46.88% 0.198 274.1)
XYZ	xyz(14.3067, 9.2669, 54.4499)
Luminance	0.0927 (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

#3F44C6 #C6C13F

analogous

#3F87C6 #3F44C6 #7D3FC6

triadic

#3F44C6 #C63F44 #44C63F

tetradic

#3F44C6 #C63F87 #C6C13F #3FC67D

square

#3F44C6 #C63F87 #C6C13F #3FC67D

split-complementary

#3F44C6 #C67D3F #87C63F

monochromatic

#20236B #2E329A #3F44C6 #6E72D4 #9DA0E2

Accessibility & contrast

On white

7.36

#3F44C6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#3F44C6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F44C6

7.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F44C6	#FFFFFF	#000000	##FFFFFF
##3F44C6	1.00	7.36	2.85	7.36
#FFFFFF	7.36	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CCA

Deuteranopia (green-blind)

#0050C4

Tritanopia (blue-blind)

#00667F

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #3f44c6;
/* rgb */ color: rgb(63, 68, 198);
/* oklch */ color: oklch(46.9% 0.198 274.1);

Tailwind

colors: {
  custom: {
    50: '#8578d8',
    500: '#3f44c6',
    950: '#000000',
  },
}

SCSS

$custom: #3f44c6;
$custom-light: #8578d8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f44c6",
  "rgb": {
    "r": 63,
    "g": 68,
    "b": 198
  },
  "hsl": {
    "h": 237.778,
    "s": 54.217,
    "l": 51.176
  },
  "oklch": {
    "l": 0.46881,
    "c": 0.19755,
    "h": 274.1
  },
  "luminance": 0.09268
}

Semantic roles & 50–950 ramp

primary

#3F44C6

secondary

#CECC93

accent

#D84ADE

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0C0915

muted

#7D7B83

Preview Lab

Preview with #3F44C6

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

Preview Lab → · Contrast checker → · Palette generator →