#3F4366#3F4366

#3F4366 is a dark, muted blue. Relative luminance 0.060; OKLCH L 39.5% C 0.059 H 278.3°. Best body text is #FFFFFF at 9.52:1 contrast (WCAG AA passes).

Color values

HEX	#3F4366
RGB	rgb(63, 67, 102)
HSL	hsl(234, 24%, 32%)
HSV	hsv(234, 38%, 40%)
CMYK	cmyk(38.2%, 34.3%, 0%, 60%)
CIE-LAB	lab(29.49, 7.92, -21.03)
CIE-LCH	lch(29.49, 22.48, 290.64°)
OKLab	oklab(39.51% 0.0086 -0.0587)
OKLCH	oklch(39.51% 0.059 278.3)
XYZ	xyz(6.4546, 6.0301, 13.3916)
Luminance	0.0603 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4366 #66623F

analogous

#3F5766 #3F4366 #4F3F66

triadic

#3F4366 #663F43 #43663F

tetradic

#3F4366 #663F57 #66623F #3F664F

square

#3F4366 #663F57 #66623F #3F664F

split-complementary

#3F4366 #664F3F #57663F

monochromatic

#10111A #282A40 #3F4366 #565C8C #757BAA

Accessibility & contrast

On white

9.52

#3F4366 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#3F4366 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4366

9.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4366	#FFFFFF	#000000	##FFFFFF
##3F4366	1.00	9.52	2.21	9.52
#FFFFFF	9.52	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#384767

Deuteranopia (green-blind)

#364465

Tritanopia (blue-blind)

#344A50

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #3f4366;
/* rgb */ color: rgb(63, 67, 102);
/* oklch */ color: oklch(39.5% 0.059 278.3);

Tailwind

colors: {
  custom: {
    50: '#757792',
    500: '#3f4366',
    950: '#000000',
  },
}

SCSS

$custom: #3f4366;
$custom-light: #757792;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4366",
  "rgb": {
    "r": 63,
    "g": 67,
    "b": 102
  },
  "hsl": {
    "h": 233.846,
    "s": 23.636,
    "l": 32.353
  },
  "oklch": {
    "l": 0.39508,
    "c": 0.05932,
    "h": 278.3
  },
  "luminance": 0.0603
}

Semantic roles & 50–950 ramp

primary

#3F4366

secondary

#95916B

accent

#B768C0

background

#F7F7F8

surface

#EDEDF0

border

#C8C8CB

text

#08080D

muted

#7B7B7D

Preview Lab

Preview with #3F4366

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

Preview Lab → · Contrast checker → · Palette generator →