#3F4D64#3F4D64

#3F4D64 is a dark, muted blue. Relative luminance 0.073; OKLCH L 41.8% C 0.043 H 260.2°. Best body text is #FFFFFF at 8.55:1 contrast (WCAG AA passes).

Color values

HEX	#3F4D64
RGB	rgb(63, 77, 100)
HSL	hsl(217, 23%, 32%)
HSV	hsv(217, 37%, 39%)
CMYK	cmyk(37%, 23%, 0%, 60.8%)
CIE-LAB	lab(32.45, 0.80, -15.18)
CIE-LCH	lch(32.45, 15.21, 273.01°)
OKLab	oklab(41.78% -0.0072 -0.042)
OKLCH	oklch(41.78% 0.043 260.2)
XYZ	xyz(7.0033, 7.2843, 13.0911)
Luminance	0.0728 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4D64 #64563F

analogous

#3F6064 #3F4D64 #443F64

triadic

#3F4D64 #643F4D #4D643F

tetradic

#3F4D64 #643F60 #64563F #3F6444

square

#3F4D64 #643F60 #64563F #3F6444

split-complementary

#3F4D64 #64443F #60643F

monochromatic

#101319 #27303E #3F4D64 #576A8A #7589A8

Accessibility & contrast

On white

8.55

#3F4D64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#3F4D64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4D64

8.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4D64	#FFFFFF	#000000	##FFFFFF
##3F4D64	1.00	8.55	2.46	8.55
#FFFFFF	8.55	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#454E65

Deuteranopia (green-blind)

#414B63

Tritanopia (blue-blind)

#345255

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3f4d64;
/* rgb */ color: rgb(63, 77, 100);
/* oklch */ color: oklch(41.8% 0.043 260.2);

Tailwind

colors: {
  custom: {
    50: '#757e90',
    500: '#3f4d64',
    950: '#000000',
  },
}

SCSS

$custom: #3f4d64;
$custom-light: #757e90;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4d64",
  "rgb": {
    "r": 63,
    "g": 77,
    "b": 100
  },
  "hsl": {
    "h": 217.297,
    "s": 22.699,
    "l": 31.961
  },
  "oklch": {
    "l": 0.41778,
    "c": 0.0426,
    "h": 260.2
  },
  "luminance": 0.07285
}

Semantic roles & 50–950 ramp

primary

#3F4D64

secondary

#94846B

accent

#9E69BF

background

#F7F7F8

surface

#EDEEF0

border

#C8C9CB

text

#080A0C

muted

#7B7C7D

Preview Lab

Preview with #3F4D64

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

Preview Lab → · Contrast checker → · Palette generator →