#3F396F#3F396F

#3F396F is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.9% C 0.090 H 286.3°. Best body text is #FFFFFF at 10.36:1 contrast (WCAG AA passes).

Color values

HEX	#3F396F
RGB	rgb(63, 57, 111)
HSL	hsl(247, 32%, 33%)
HSV	hsv(247, 49%, 44%)
CMYK	cmyk(43.2%, 48.6%, 0%, 56.5%)
CIE-LAB	lab(27.10, 17.43, -30.54)
CIE-LCH	lch(27.10, 35.16, 299.71°)
OKLab	oklab(37.85% 0.0253 -0.0864)
OKLCH	oklch(37.85% 0.09 286.3)
XYZ	xyz(6.3815, 5.1305, 15.6899)
Luminance	0.0513 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F396F #696F39

analogous

#394E6F #3F396F #5A396F

triadic

#3F396F #6F3F39 #396F3F

tetradic

#3F396F #6F394E #696F39 #396F5A

square

#3F396F #6F394E #696F39 #396F5A

split-complementary

#3F396F #6F5A39 #4E6F39

monochromatic

#110F1E #282447 #3F396F #564E97 #766EB4

Accessibility & contrast

On white

10.36

#3F396F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#3F396F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F396F

10.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F396F	#FFFFFF	#000000	##FFFFFF
##3F396F	1.00	10.36	2.03	10.36
#FFFFFF	10.36	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#254171

Deuteranopia (green-blind)

#243F6E

Tritanopia (blue-blind)

#31444E

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #3f396f;
/* rgb */ color: rgb(63, 57, 111);
/* oklch */ color: oklch(37.9% 0.090 286.3);

Tailwind

colors: {
  custom: {
    50: '#776f99',
    500: '#3f396f',
    950: '#000000',
  },
}

SCSS

$custom: #3f396f;
$custom-light: #776f99;
$custom-dark: #000000;

JSON

{
  "hex": "#3f396f",
  "rgb": {
    "r": 63,
    "g": 57,
    "b": 111
  },
  "hsl": {
    "h": 246.667,
    "s": 32.143,
    "l": 32.941
  },
  "oklch": {
    "l": 0.3785,
    "c": 0.09001,
    "h": 286.3
  },
  "luminance": 0.05131
}

Semantic roles & 50–950 ramp

primary

#3F396F

secondary

#989E66

accent

#C85FBD

background

#F7F6F9

surface

#EDECF2

border

#C8C7CC

text

#09070E

muted

#7B7A7E

Preview Lab

Preview with #3F396F

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

Preview Lab → · Contrast checker → · Palette generator →