#343B73#343B73

#343B73 is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.6% C 0.095 H 275.5°. Best body text is #FFFFFF at 10.40:1 contrast (WCAG AA passes).

Color values

HEX	#343B73
RGB	rgb(52, 59, 115)
HSL	hsl(233, 38%, 33%)
HSV	hsv(233, 55%, 45%)
CMYK	cmyk(54.8%, 48.7%, 0%, 54.9%)
CIE-LAB	lab(27.00, 14.53, -33.29)
CIE-LCH	lch(27.00, 36.33, 293.58°)
OKLab	oklab(37.63% 0.0091 -0.0947)
OKLCH	oklch(37.63% 0.095 275.5)
XYZ	xyz(6.0737, 5.0954, 16.8798)
Luminance	0.0510 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343B73 #736C34

analogous

#345B73 #343B73 #4C3473

triadic

#343B73 #73343B #3B7334

tetradic

#343B73 #73345B #736C34 #34734C

square

#343B73 #73345B #736C34 #34734C

split-complementary

#343B73 #734C34 #5B7334

monochromatic

#0E101F #212549 #343B73 #47519D #6770BA

Accessibility & contrast

On white

10.40

#343B73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#343B73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343B73

10.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343B73	#FFFFFF	#000000	##FFFFFF
##343B73	1.00	10.40	2.02	10.40
#FFFFFF	10.40	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#224375

Deuteranopia (green-blind)

#1B3D72

Tritanopia (blue-blind)

#184751

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #343b73;
/* rgb */ color: rgb(52, 59, 115);
/* oklch */ color: oklch(37.6% 0.095 275.5);

Tailwind

colors: {
  custom: {
    50: '#70709c',
    500: '#343b73',
    950: '#000000',
  },
}

SCSS

$custom: #343b73;
$custom-light: #70709c;
$custom-dark: #000000;

JSON

{
  "hex": "#343b73",
  "rgb": {
    "r": 52,
    "g": 59,
    "b": 115
  },
  "hsl": {
    "h": 233.333,
    "s": 37.725,
    "l": 32.745
  },
  "oklch": {
    "l": 0.37626,
    "c": 0.09518,
    "h": 275.5
  },
  "luminance": 0.05096
}

Semantic roles & 50–950 ramp

primary

#343B73

secondary

#A39B60

accent

#C15ACE

background

#F7F6F9

surface

#EDECF2

border

#C8C7CC

text

#08070E

muted

#7B7A7E

Preview Lab

Preview with #343B73

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

Preview Lab → · Contrast checker → · Palette generator →