#3F4B60#3F4B60

#3F4B60 is a dark, muted blue. Relative luminance 0.069; OKLCH L 41.1% C 0.039 H 261.5°. Best body text is #FFFFFF at 8.80:1 contrast (WCAG AA passes).

Color values

HEX	#3F4B60
RGB	rgb(63, 75, 96)
HSL	hsl(218, 21%, 31%)
HSV	hsv(218, 34%, 38%)
CMYK	cmyk(34.4%, 21.9%, 0%, 62.4%)
CIE-LAB	lab(31.65, 0.90, -13.86)
CIE-LCH	lch(31.65, 13.89, 273.71°)
OKLab	oklab(41.1% -0.0057 -0.0382)
OKLCH	oklch(41.1% 0.039 261.5)
XYZ	xyz(6.6767, 6.9332, 12.0505)
Luminance	0.0693 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4B60 #60543F

analogous

#3F5B60 #3F4B60 #433F60

triadic

#3F4B60 #603F4B #4B603F

tetradic

#3F4B60 #603F5B #60543F #3F6043

square

#3F4B60 #603F5B #60543F #3F6043

split-complementary

#3F4B60 #60433F #5B603F

monochromatic

#0F1116 #272E3B #3F4B60 #576885 #7586A4

Accessibility & contrast

On white

8.80

#3F4B60 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#3F4B60 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4B60

8.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4B60	#FFFFFF	#000000	##FFFFFF
##3F4B60	1.00	8.80	2.39	8.80
#FFFFFF	8.80	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#444C61

Deuteranopia (green-blind)

#414960

Tritanopia (blue-blind)

#354F52

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3f4b60;
/* rgb */ color: rgb(63, 75, 96);
/* oklch */ color: oklch(41.1% 0.039 261.5);

Tailwind

colors: {
  custom: {
    50: '#757d8d',
    500: '#3f4b60',
    950: '#000000',
  },
}

SCSS

$custom: #3f4b60;
$custom-light: #757d8d;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4b60",
  "rgb": {
    "r": 63,
    "g": 75,
    "b": 96
  },
  "hsl": {
    "h": 218.182,
    "s": 20.755,
    "l": 31.176
  },
  "oklch": {
    "l": 0.41102,
    "c": 0.03864,
    "h": 261.5
  },
  "luminance": 0.06933
}

Semantic roles & 50–950 ramp

primary

#3F4B60

secondary

#90826B

accent

#9F6ABD

background

#F7F7F8

surface

#EDEEF0

border

#C8C9CB

text

#08090C

muted

#7B7B7D

Preview Lab

Preview with #3F4B60

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

Preview Lab → · Contrast checker → · Palette generator →