#3F419F#3F419F

#3F419F is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.0% C 0.149 H 277.2°. Best body text is #FFFFFF at 8.51:1 contrast (WCAG AA passes).

Color values

HEX	#3F419F
RGB	rgb(63, 65, 159)
HSL	hsl(239, 43%, 44%)
HSV	hsv(239, 60%, 62%)
CMYK	cmyk(60.4%, 59.1%, 0%, 37.6%)
CIE-LAB	lab(32.57, 28.23, -51.51)
CIE-LCH	lch(32.57, 58.74, 298.72°)
OKLab	oklab(43% 0.0187 -0.148)
OKLCH	oklch(43% 0.149 277.2)
XYZ	xyz(10.1962, 7.3398, 33.6736)
Luminance	0.0734 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F419F #9F9D3F

analogous

#3F719F #3F419F #6D3F9F

triadic

#3F419F #9F3F41 #419F3F

tetradic

#3F419F #9F3F71 #9F9D3F #3F9F6D

square

#3F419F #9F3F71 #9F9D3F #3F9F6D

split-complementary

#3F419F #9F6D3F #719F3F

monochromatic

#1C1D47 #2E2F73 #3F419F #5D5FBF #888AD0

Accessibility & contrast

On white

8.51

#3F419F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#3F419F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F419F

8.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F419F	#FFFFFF	#000000	##FFFFFF
##3F419F	1.00	8.51	2.47	8.51
#FFFFFF	8.51	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051A2

Deuteranopia (green-blind)

#00499D

Tritanopia (blue-blind)

#005869

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3f419f;
/* rgb */ color: rgb(63, 65, 159);
/* oklch */ color: oklch(43.0% 0.149 277.2);

Tailwind

colors: {
  custom: {
    50: '#7e75bc',
    500: '#3f419f',
    950: '#000000',
  },
}

SCSS

$custom: #3f419f;
$custom-light: #7e75bc;
$custom-dark: #000000;

JSON

{
  "hex": "#3f419f",
  "rgb": {
    "r": 63,
    "g": 65,
    "b": 159
  },
  "hsl": {
    "h": 238.75,
    "s": 43.243,
    "l": 43.529
  },
  "oklch": {
    "l": 0.43004,
    "c": 0.14913,
    "h": 277.2
  },
  "luminance": 0.07341
}

Semantic roles & 50–950 ramp

primary

#3F419F

secondary

#BBB97F

accent

#D055D3

background

#F8F7FB

surface

#EFEDF6

border

#CAC8D0

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #3F419F

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

Preview Lab → · Contrast checker → · Palette generator →