#3F4B6B#3F4B6B

#3F4B6B is a dark, muted blue. Relative luminance 0.071; OKLCH L 41.6% C 0.056 H 268.1°. Best body text is #FFFFFF at 8.64:1 contrast (WCAG AA passes).

Color values

HEX	#3F4B6B
RGB	rgb(63, 75, 107)
HSL	hsl(224, 26%, 33%)
HSV	hsv(224, 41%, 42%)
CMYK	cmyk(41.1%, 29.9%, 0%, 58%)
CIE-LAB	lab(32.15, 4.22, -20.07)
CIE-LCH	lch(32.15, 20.51, 281.87°)
OKLab	oklab(41.65% -0.0018 -0.0559)
OKLCH	oklch(41.65% 0.056 268.1)
XYZ	xyz(7.2190, 7.1501, 14.9068)
Luminance	0.0715 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4B6B #6B5F3F

analogous

#3F616B #3F4B6B #493F6B

triadic

#3F4B6B #6B3F4B #4B6B3F

tetradic

#3F4B6B #6B3F61 #6B5F3F #3F6B49

square

#3F4B6B #6B3F61 #6B5F3F #3F6B49

split-complementary

#3F4B6B #6B493F #616B3F

monochromatic

#12151E #283044 #3F4B6B #566692 #7685AE

Accessibility & contrast

On white

8.64

#3F4B6B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#3F4B6B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4B6B

8.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4B6B	#FFFFFF	#000000	##FFFFFF
##3F4B6B	1.00	8.64	2.43	8.64
#FFFFFF	8.64	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#404E6C

Deuteranopia (green-blind)

#3C4A6A

Tritanopia (blue-blind)

#315156

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3f4b6b;
/* rgb */ color: rgb(63, 75, 107);
/* oklch */ color: oklch(41.6% 0.056 268.1);

Tailwind

colors: {
  custom: {
    50: '#767d95',
    500: '#3f4b6b',
    950: '#000000',
  },
}

SCSS

$custom: #3f4b6b;
$custom-light: #767d95;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4b6b",
  "rgb": {
    "r": 63,
    "g": 75,
    "b": 107
  },
  "hsl": {
    "h": 223.636,
    "s": 25.882,
    "l": 33.333
  },
  "oklch": {
    "l": 0.41648,
    "c": 0.05595,
    "h": 268.1
  },
  "luminance": 0.0715
}

Semantic roles & 50–950 ramp

primary

#3F4B6B

secondary

#998D6C

accent

#A966C2

background

#F7F7F9

surface

#EDEEF1

border

#C8C9CB

text

#08090D

muted

#7B7B7E

Preview Lab

Preview with #3F4B6B

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

Preview Lab → · Contrast checker → · Palette generator →