#3F419D#3F419D

#3F419D is a dark, vivid blue. Relative luminance 0.073; OKLCH L 42.8% C 0.146 H 277.3°. Best body text is #FFFFFF at 8.56:1 contrast (WCAG AA passes).

Color values

HEX	#3F419D
RGB	rgb(63, 65, 157)
HSL	hsl(239, 43%, 43%)
HSV	hsv(239, 60%, 62%)
CMYK	cmyk(59.9%, 58.6%, 0%, 38.4%)
CIE-LAB	lab(32.42, 27.54, -50.55)
CIE-LCH	lch(32.42, 57.57, 298.58°)
OKLab	oklab(42.84% 0.0187 -0.1451)
OKLCH	oklch(42.84% 0.146 277.3)
XYZ	xyz(10.0240, 7.2709, 32.7670)
Luminance	0.0727 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F419D #9D9B3F

analogous

#3F709D #3F419D #6C3F9D

triadic

#3F419D #9D3F41 #419D3F

tetradic

#3F419D #9D3F70 #9D9B3F #3F9D6C

square

#3F419D #9D3F70 #9D9B3F #3F9D6C

split-complementary

#3F419D #9D6C3F #709D3F

monochromatic

#1C1D46 #2D2F71 #3F419D #5C5EBD #8789CF

Accessibility & contrast

On white

8.56

#3F419D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#3F419D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F419D

8.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F419D	#FFFFFF	#000000	##FFFFFF
##3F419D	1.00	8.56	2.45	8.56
#FFFFFF	8.56	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A0

Deuteranopia (green-blind)

#00489B

Tritanopia (blue-blind)

#005768

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3f419d;
/* rgb */ color: rgb(63, 65, 157);
/* oklch */ color: oklch(42.8% 0.146 277.3);

Tailwind

colors: {
  custom: {
    50: '#7d75bb',
    500: '#3f419d',
    950: '#000000',
  },
}

SCSS

$custom: #3f419d;
$custom-light: #7d75bb;
$custom-dark: #000000;

JSON

{
  "hex": "#3f419d",
  "rgb": {
    "r": 63,
    "g": 65,
    "b": 157
  },
  "hsl": {
    "h": 238.723,
    "s": 42.727,
    "l": 43.137
  },
  "oklch": {
    "l": 0.42843,
    "c": 0.14632,
    "h": 277.3
  },
  "luminance": 0.07272
}

Semantic roles & 50–950 ramp

primary

#3F419D

secondary

#BAB87E

accent

#D055D3

background

#F8F7FB

surface

#EFEDF6

border

#CAC8D0

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #3F419D

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

Preview Lab → · Contrast checker → · Palette generator →