#3F4E64#3F4E64

#3F4E64 is a dark, muted blue. Relative luminance 0.074; OKLCH L 42.0% C 0.042 H 257.9°. Best body text is #FFFFFF at 8.45:1 contrast (WCAG AA passes).

Color values

HEX	#3F4E64
RGB	rgb(63, 78, 100)
HSL	hsl(216, 23%, 32%)
HSV	hsv(216, 37%, 39%)
CMYK	cmyk(37%, 22%, 0%, 60.8%)
CIE-LAB	lab(32.76, 0.16, -14.71)
CIE-LCH	lch(32.76, 14.71, 270.63°)
OKLab	oklab(42.02% -0.0087 -0.0406)
OKLCH	oklch(42.02% 0.042 257.9)
XYZ	xyz(7.0738, 7.4253, 13.1146)
Luminance	0.0743 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4E64 #64553F

analogous

#3F6164 #3F4E64 #433F64

triadic

#3F4E64 #643F4E #4E643F

tetradic

#3F4E64 #643F61 #64553F #3F6443

square

#3F4E64 #643F61 #64553F #3F6443

split-complementary

#3F4E64 #64433F #61643F

monochromatic

#101319 #27313E #3F4E64 #576B8A #758AA8

Accessibility & contrast

On white

8.45

#3F4E64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#3F4E64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4E64

8.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4E64	#FFFFFF	#000000	##FFFFFF
##3F4E64	1.00	8.45	2.49	8.45
#FFFFFF	8.45	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#464F65

Deuteranopia (green-blind)

#424B64

Tritanopia (blue-blind)

#345355

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3f4e64;
/* rgb */ color: rgb(63, 78, 100);
/* oklch */ color: oklch(42.0% 0.042 257.9);

Tailwind

colors: {
  custom: {
    50: '#757f90',
    500: '#3f4e64',
    950: '#000000',
  },
}

SCSS

$custom: #3f4e64;
$custom-light: #757f90;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4e64",
  "rgb": {
    "r": 63,
    "g": 78,
    "b": 100
  },
  "hsl": {
    "h": 215.676,
    "s": 22.699,
    "l": 31.961
  },
  "oklch": {
    "l": 0.42021,
    "c": 0.04156,
    "h": 257.9
  },
  "luminance": 0.07426
}

Semantic roles & 50–950 ramp

primary

#3F4E64

secondary

#94836B

accent

#9C69BF

background

#F7F7F8

surface

#EDEEF0

border

#C8C9CB

text

#080A0C

muted

#7B7C7D

Preview Lab

Preview with #3F4E64

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

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