#3F3DBA#3F3DBA

#3F3DBA is a dark, vivid blue. Relative luminance 0.079; OKLCH L 44.6% C 0.190 H 276.1°. Best body text is #FFFFFF at 8.12:1 contrast (WCAG AA passes).

Color values

HEX	#3F3DBA
RGB	rgb(63, 61, 186)
HSL	hsl(241, 51%, 48%)
HSV	hsv(241, 67%, 73%)
CMYK	cmyk(66.1%, 67.2%, 0%, 27.1%)
CIE-LAB	lab(33.85, 39.91, -65.53)
CIE-LCH	lch(33.85, 76.73, 301.34°)
OKLab	oklab(44.64% 0.0203 -0.1891)
OKLCH	oklch(44.64% 0.19 276.1)
XYZ	xyz(12.5787, 7.9383, 47.3142)
Luminance	0.0794 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.53

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F3DBA #B8BA3D

analogous

#3D79BA #3F3DBA #7D3DBA

triadic

#3F3DBA #BA3F3D #3DBA3F

tetradic

#3F3DBA #BA3D79 #B8BA3D #3DBA7D

square

#3F3DBA #BA3D79 #B8BA3D #3DBA7D

split-complementary

#3F3DBA #BA7D3D #79BA3D

monochromatic

#201F5E #2F2E8C #3F3DBA #6967CD #9695DC

Accessibility & contrast

On white

8.12

#3F3DBA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#3F3DBA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3DBA

8.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3DBA	#FFFFFF	#000000	##FFFFFF
##3F3DBA	1.00	8.12	2.59	8.12
#FFFFFF	8.12	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055BE

Deuteranopia (green-blind)

#004AB8

Tritanopia (blue-blind)

#005E76

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3f3dba;
/* rgb */ color: rgb(63, 61, 186);
/* oklch */ color: oklch(44.6% 0.190 276.1);

Tailwind

colors: {
  custom: {
    50: '#8373d0',
    500: '#3f3dba',
    950: '#000000',
  },
}

SCSS

$custom: #3f3dba;
$custom-light: #8373d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3dba",
  "rgb": {
    "r": 63,
    "g": 61,
    "b": 186
  },
  "hsl": {
    "h": 240.96,
    "s": 50.607,
    "l": 48.431
  },
  "oklch": {
    "l": 0.44641,
    "c": 0.19022,
    "h": 276.1
  },
  "luminance": 0.07939
}

Semantic roles & 50–950 ramp

primary

#3F3DBA

secondary

#C7C88B

accent

#DA4ED8

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #3F3DBA

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

Preview Lab → · Contrast checker → · Palette generator →