#343C54#343C54

#343C54 is a dark, muted blue. Relative luminance 0.046; OKLCH L 36.0% C 0.043 H 269.9°. Best body text is #FFFFFF at 10.94:1 contrast (WCAG AA passes).

Color values

HEX	#343C54
RGB	rgb(52, 60, 84)
HSL	hsl(225, 24%, 27%)
HSV	hsv(225, 38%, 33%)
CMYK	cmyk(38.1%, 28.6%, 0%, 67.1%)
CIE-LAB	lab(25.57, 3.46, -15.55)
CIE-LCH	lch(25.57, 15.93, 282.53°)
OKLab	oklab(35.95% 0 -0.0431)
OKLCH	oklch(35.95% 0.043 269.9)
XYZ	xyz(4.6318, 4.6017, 9.0300)
Luminance	0.0460 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343C54 #544C34

analogous

#344C54 #343C54 #3C3454

triadic

#343C54 #54343C #3C5434

tetradic

#343C54 #54344C #544C34 #34543C

square

#343C54 #54344C #544C34 #34543C

split-complementary

#343C54 #543C34 #4C5434

monochromatic

#0C0E13 #1D212E #343C54 #4B577A #64729F

Accessibility & contrast

On white

10.94

#343C54 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#343C54 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343C54

10.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343C54	#FFFFFF	#000000	##FFFFFF
##343C54	1.00	10.94	1.92	10.94
#FFFFFF	10.94	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#343E55

Deuteranopia (green-blind)

#313B53

Tritanopia (blue-blind)

#2B4144

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #343c54;
/* rgb */ color: rgb(52, 60, 84);
/* oklch */ color: oklch(36.0% 0.043 269.9);

Tailwind

colors: {
  custom: {
    50: '#6c7184',
    500: '#343c54',
    950: '#000000',
  },
}

SCSS

$custom: #343c54;
$custom-light: #6c7184;
$custom-dark: #000000;

JSON

{
  "hex": "#343c54",
  "rgb": {
    "r": 52,
    "g": 60,
    "b": 84
  },
  "hsl": {
    "h": 225,
    "s": 23.529,
    "l": 26.667
  },
  "oklch": {
    "l": 0.35954,
    "c": 0.04315,
    "h": 269.9
  },
  "luminance": 0.04602
}

Semantic roles & 50–950 ramp

primary

#343C54

secondary

#857B5F

accent

#AA68C0

background

#F6F6F8

surface

#EBECEF

border

#C6C7CA

text

#07070A

muted

#7A7A7C

Preview Lab

Preview with #343C54

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

Preview Lab → · Contrast checker → · Palette generator →