#3F348D#3F348D

#3F348D is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.2% C 0.142 H 283.3°. Best body text is #FFFFFF at 10.06:1 contrast (WCAG AA passes).

Color values

HEX	#3F348D
RGB	rgb(63, 52, 141)
HSL	hsl(247, 46%, 38%)
HSV	hsv(247, 63%, 55%)
CMYK	cmyk(55.3%, 63.1%, 0%, 44.7%)
CIE-LAB	lab(27.94, 30.49, -48.03)
CIE-LCH	lch(27.94, 56.89, 302.41°)
OKLab	oklab(39.15% 0.0326 -0.1378)
OKLCH	oklch(39.15% 0.142 283.3)
XYZ	xyz(8.0841, 5.4354, 25.8173)
Luminance	0.0544 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F348D #828D34

analogous

#34558D #3F348D #6C348D

triadic

#3F348D #8D3F34 #348D3F

tetradic

#3F348D #8D3455 #828D34 #348D6C

square

#3F348D #8D3455 #828D34 #348D6C

split-complementary

#3F348D #8D6C34 #558D34

monochromatic

#171334 #2B2460 #3F348D #5344BA #7C71CB

Accessibility & contrast

On white

10.06

#3F348D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#3F348D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F348D

10.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F348D	#FFFFFF	#000000	##FFFFFF
##3F348D	1.00	10.06	2.09	10.06
#FFFFFF	10.06	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004590

Deuteranopia (green-blind)

#003F8B

Tritanopia (blue-blind)

#1D495B

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #3f348d;
/* rgb */ color: rgb(63, 52, 141);
/* oklch */ color: oklch(39.2% 0.142 283.3);

Tailwind

colors: {
  custom: {
    50: '#7c6caf',
    500: '#3f348d',
    950: '#000000',
  },
}

SCSS

$custom: #3f348d;
$custom-light: #7c6caf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f348d",
  "rgb": {
    "r": 63,
    "g": 52,
    "b": 141
  },
  "hsl": {
    "h": 247.416,
    "s": 46.114,
    "l": 37.843
  },
  "oklch": {
    "l": 0.39152,
    "c": 0.14159,
    "h": 283.3
  },
  "luminance": 0.05436
}

Semantic roles & 50–950 ramp

primary

#3F348D

secondary

#AAB36A

accent

#D652C5

background

#F7F6FA

surface

#EEEBF5

border

#C9C6CF

text

#0A0710

muted

#7C7A7F

Preview Lab

Preview with #3F348D

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

Preview Lab → · Contrast checker → · Palette generator →