#3F389E#3F389E

#3F389E is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.3% C 0.160 H 279.9°. Best body text is #FFFFFF at 9.25:1 contrast (WCAG AA passes).

Color values

HEX	#3F389E
RGB	rgb(63, 56, 158)
HSL	hsl(244, 48%, 42%)
HSV	hsv(244, 65%, 62%)
CMYK	cmyk(60.1%, 64.6%, 0%, 38%)
CIE-LAB	lab(30.29, 33.62, -54.62)
CIE-LCH	lch(30.29, 64.14, 301.61°)
OKLab	oklab(41.3% 0.0273 -0.1572)
OKLCH	oklch(41.3% 0.16 279.9)
XYZ	xyz(9.6337, 6.3530, 33.0597)
Luminance	0.0635 (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

#3F389E #979E38

analogous

#38649E #3F389E #72389E

triadic

#3F389E #9E3F38 #389E3F

tetradic

#3F389E #9E3864 #979E38 #389E72

square

#3F389E #9E3864 #979E38 #389E72

split-complementary

#3F389E #9E7238 #649E38

monochromatic

#1B1844 #2D2871 #3F389E #5952C2 #857FD2

Accessibility & contrast

On white

9.25

#3F389E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#3F389E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F389E

9.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F389E	#FFFFFF	#000000	##FFFFFF
##3F389E	1.00	9.25	2.27	9.25
#FFFFFF	9.25	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BA1

Deuteranopia (green-blind)

#00439C

Tritanopia (blue-blind)

#005265

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #3f389e;
/* rgb */ color: rgb(63, 56, 158);
/* oklch */ color: oklch(41.3% 0.160 279.9);

Tailwind

colors: {
  custom: {
    50: '#7e6fbb',
    500: '#3f389e',
    950: '#000000',
  },
}

SCSS

$custom: #3f389e;
$custom-light: #7e6fbb;
$custom-dark: #000000;

JSON

{
  "hex": "#3f389e",
  "rgb": {
    "r": 63,
    "g": 56,
    "b": 158
  },
  "hsl": {
    "h": 244.118,
    "s": 47.664,
    "l": 41.961
  },
  "oklch": {
    "l": 0.41301,
    "c": 0.15951,
    "h": 279.9
  },
  "luminance": 0.06354
}

Semantic roles & 50–950 ramp

primary

#3F389E

secondary

#B6BB77

accent

#D751CE

background

#F8F6FB

surface

#EFECF6

border

#CAC7D0

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #3F389E

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

Preview Lab → · Contrast checker → · Palette generator →