#3F445D#3F445D

#3F445D is a dark, muted blue. Relative luminance 0.060; OKLCH L 39.3% C 0.043 H 275.5°. Best body text is #FFFFFF at 9.56:1 contrast (WCAG AA passes).

Color values

HEX	#3F445D
RGB	rgb(63, 68, 93)
HSL	hsl(230, 19%, 31%)
HSV	hsv(230, 32%, 36%)
CMYK	cmyk(32.3%, 26.9%, 0%, 63.5%)
CIE-LAB	lab(29.36, 4.56, -15.46)
CIE-LCH	lch(29.36, 16.12, 286.45°)
OKLab	oklab(39.27% 0.0041 -0.0427)
OKLCH	oklch(39.27% 0.043 275.5)
XYZ	xyz(6.0923, 5.9811, 11.1873)
Luminance	0.0598 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F445D #5D583F

analogous

#3F535D #3F445D #493F5D

triadic

#3F445D #5D3F44 #445D3F

tetradic

#3F445D #5D3F53 #5D583F #3F5D49

square

#3F445D #5D3F53 #5D583F #3F5D49

split-complementary

#3F445D #5D493F #535D3F

monochromatic

#0E0F14 #262939 #3F445D #585F81 #757CA1

Accessibility & contrast

On white

9.56

#3F445D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#3F445D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F445D

9.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F445D	#FFFFFF	#000000	##FFFFFF
##3F445D	1.00	9.56	2.20	9.56
#FFFFFF	9.56	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D465E

Deuteranopia (green-blind)

#3B445C

Tritanopia (blue-blind)

#37494D

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #3f445d;
/* rgb */ color: rgb(63, 68, 93);
/* oklch */ color: oklch(39.3% 0.043 275.5);

Tailwind

colors: {
  custom: {
    50: '#75778b',
    500: '#3f445d',
    950: '#000000',
  },
}

SCSS

$custom: #3f445d;
$custom-light: #75778b;
$custom-dark: #000000;

JSON

{
  "hex": "#3f445d",
  "rgb": {
    "r": 63,
    "g": 68,
    "b": 93
  },
  "hsl": {
    "h": 230,
    "s": 19.231,
    "l": 30.588
  },
  "oklch": {
    "l": 0.39272,
    "c": 0.04292,
    "h": 275.5
  },
  "luminance": 0.05981
}

Semantic roles & 50–950 ramp

primary

#3F445D

secondary

#8D876B

accent

#AF6CBC

background

#F7F7F8

surface

#EDEDF0

border

#C8C8CB

text

#08080C

muted

#7B7B7D

Preview Lab

Preview with #3F445D

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

Preview Lab → · Contrast checker → · Palette generator →