#3F4E63#3F4E63

#3F4E63 is a dark, muted blue. Relative luminance 0.074; OKLCH L 42.0% C 0.040 H 256.8°. Best body text is #FFFFFF at 8.46:1 contrast (WCAG AA passes).

Color values

HEX	#3F4E63
RGB	rgb(63, 78, 99)
HSL	hsl(215, 22%, 32%)
HSV	hsv(215, 36%, 39%)
CMYK	cmyk(36.4%, 21.2%, 0%, 61.2%)
CIE-LAB	lab(32.71, -0.14, -14.14)
CIE-LCH	lch(32.71, 14.14, 269.45°)
OKLab	oklab(41.97% -0.0091 -0.039)
OKLCH	oklch(41.97% 0.04 256.8)
XYZ	xyz(7.0257, 7.4061, 12.8613)
Luminance	0.0741 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4E63 #63543F

analogous

#3F6063 #3F4E63 #423F63

triadic

#3F4E63 #633F4E #4E633F

tetradic

#3F4E63 #633F60 #63543F #3F6342

square

#3F4E63 #633F60 #63543F #3F6342

split-complementary

#3F4E63 #63423F #60633F

monochromatic

#0F1318 #27313E #3F4E63 #576B88 #758AA7

Accessibility & contrast

On white

8.46

#3F4E63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#3F4E63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4E63

8.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4E63	#FFFFFF	#000000	##FFFFFF
##3F4E63	1.00	8.46	2.48	8.46
#FFFFFF	8.46	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#474F64

Deuteranopia (green-blind)

#434B63

Tritanopia (blue-blind)

#345255

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3f4e63;
/* rgb */ color: rgb(63, 78, 99);
/* oklch */ color: oklch(42.0% 0.040 256.8);

Tailwind

colors: {
  custom: {
    50: '#757f8f',
    500: '#3f4e63',
    950: '#000000',
  },
}

SCSS

$custom: #3f4e63;
$custom-light: #757f8f;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4e63",
  "rgb": {
    "r": 63,
    "g": 78,
    "b": 99
  },
  "hsl": {
    "h": 215,
    "s": 22.222,
    "l": 31.765
  },
  "oklch": {
    "l": 0.41974,
    "c": 0.04007,
    "h": 256.8
  },
  "luminance": 0.07406
}

Semantic roles & 50–950 ramp

primary

#3F4E63

secondary

#93826B

accent

#9B69BF

background

#F7F7F8

surface

#EDEEF0

border

#C8C9CB

text

#080A0C

muted

#7B7C7D

Preview Lab

Preview with #3F4E63

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

Preview Lab → · Contrast checker → · Palette generator →