#343B72#343B72

#343B72 is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.6% C 0.094 H 275.5°. Best body text is #FFFFFF at 10.42:1 contrast (WCAG AA passes).

Color values

HEX	#343B72
RGB	rgb(52, 59, 114)
HSL	hsl(233, 37%, 33%)
HSV	hsv(233, 54%, 45%)
CMYK	cmyk(54.4%, 48.2%, 0%, 55.3%)
CIE-LAB	lab(26.94, 14.18, -32.76)
CIE-LCH	lch(26.94, 35.70, 293.40°)
OKLab	oklab(37.56% 0.009 -0.0932)
OKLCH	oklch(37.56% 0.094 275.5)
XYZ	xyz(6.0164, 5.0725, 16.5784)
Luminance	0.0507 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343B72 #726B34

analogous

#345A72 #343B72 #4C3472

triadic

#343B72 #72343B #3B7234

tetradic

#343B72 #72345A #726B34 #34724C

square

#343B72 #72345A #726B34 #34724C

split-complementary

#343B72 #724C34 #5A7234

monochromatic

#0E0F1E #212548 #343B72 #47519C #6770BA

Accessibility & contrast

On white

10.42

#343B72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#343B72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343B72

10.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343B72	#FFFFFF	#000000	##FFFFFF
##343B72	1.00	10.42	2.01	10.42
#FFFFFF	10.42	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#234274

Deuteranopia (green-blind)

#1C3D71

Tritanopia (blue-blind)

#194751

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #343b72;
/* rgb */ color: rgb(52, 59, 114);
/* oklch */ color: oklch(37.6% 0.094 275.5);

Tailwind

colors: {
  custom: {
    50: '#70709b',
    500: '#343b72',
    950: '#000000',
  },
}

SCSS

$custom: #343b72;
$custom-light: #70709b;
$custom-dark: #000000;

JSON

{
  "hex": "#343b72",
  "rgb": {
    "r": 52,
    "g": 59,
    "b": 114
  },
  "hsl": {
    "h": 233.226,
    "s": 37.349,
    "l": 32.549
  },
  "oklch": {
    "l": 0.37556,
    "c": 0.09361,
    "h": 275.5
  },
  "luminance": 0.05073
}

Semantic roles & 50–950 ramp

primary

#343B72

secondary

#A29A60

accent

#C05ACD

background

#F7F6F9

surface

#EDECF2

border

#C8C7CC

text

#08070E

muted

#7B7A7E

Preview Lab

Preview with #343B72

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

Preview Lab → · Contrast checker → · Palette generator →