#343C4A#343C4A

#343C4A is a dark, muted blue. Relative luminance 0.045; OKLCH L 35.5% C 0.027 H 261.6°. Best body text is #FFFFFF at 11.10:1 contrast (WCAG AA passes).

Color values

HEX	#343C4A
RGB	rgb(52, 60, 74)
HSL	hsl(218, 17%, 25%)
HSV	hsv(218, 30%, 29%)
CMYK	cmyk(29.7%, 18.9%, 0%, 71%)
CIE-LAB	lab(25.13, 0.45, -9.64)
CIE-LCH	lch(25.13, 9.65, 272.67°)
OKLab	oklab(35.46% -0.0039 -0.0264)
OKLCH	oklch(35.46% 0.027 261.6)
XYZ	xyz(4.2677, 4.4561, 7.1125)
Luminance	0.0446 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343C4A #4A4234

analogous

#34474A #343C4A #37344A

triadic

#343C4A #4A343C #3C4A34

tetradic

#343C4A #4A3447 #4A4234 #344A37

square

#343C4A #4A3447 #4A4234 #344A37

split-complementary

#343C4A #4A3734 #474A34

monochromatic

#0D0F12 #1B1F26 #343C4A #4D596E #677692

Accessibility & contrast

On white

11.10

#343C4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#343C4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343C4A

11.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343C4A	#FFFFFF	#000000	##FFFFFF
##343C4A	1.00	11.10	1.89	11.10
#FFFFFF	11.10	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#373D4B

Deuteranopia (green-blind)

#353B4A

Tritanopia (blue-blind)

#2E3F41

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #343c4a;
/* rgb */ color: rgb(52, 60, 74);
/* oklch */ color: oklch(35.5% 0.027 261.6);

Tailwind

colors: {
  custom: {
    50: '#6c717c',
    500: '#343c4a',
    950: '#000000',
  },
}

SCSS

$custom: #343c4a;
$custom-light: #6c717c;
$custom-dark: #000000;

JSON

{
  "hex": "#343c4a",
  "rgb": {
    "r": 52,
    "g": 60,
    "b": 74
  },
  "hsl": {
    "h": 218.182,
    "s": 17.46,
    "l": 24.706
  },
  "oklch": {
    "l": 0.35461,
    "c": 0.02671,
    "h": 261.6
  },
  "luminance": 0.04456
}

Semantic roles & 50–950 ramp

primary

#343C4A

secondary

#7A7160

accent

#9E6EBA

background

#F6F6F7

surface

#EBECEE

border

#C6C7C9

text

#070709

muted

#7A7A7B

Preview Lab

Preview with #343C4A

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

Preview Lab → · Contrast checker → · Palette generator →