#343C71#343C71

#343C71 is a dark, moderate blue. Relative luminance 0.052; OKLCH L 37.7% C 0.091 H 274.8°. Best body text is #FFFFFF at 10.34:1 contrast (WCAG AA passes).

Color values

HEX	#343C71
RGB	rgb(52, 60, 113)
HSL	hsl(232, 37%, 32%)
HSV	hsv(232, 54%, 44%)
CMYK	cmyk(54%, 46.9%, 0%, 55.7%)
CIE-LAB	lab(27.17, 13.15, -31.76)
CIE-LCH	lch(27.17, 34.38, 292.48°)
OKLab	oklab(37.71% 0.0075 -0.0902)
OKLCH	oklch(37.71% 0.091 274.8)
XYZ	xyz(6.0117, 5.1537, 16.2976)
Luminance	0.0515 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343C71 #716934

analogous

#345B71 #343C71 #4A3471

triadic

#343C71 #71343C #3C7134

tetradic

#343C71 #71345B #716934 #34714A

square

#343C71 #71345B #716934 #34714A

split-complementary

#343C71 #714A34 #5B7134

monochromatic

#0D0F1D #212647 #343C71 #47529B #6771B9

Accessibility & contrast

On white

10.34

#343C71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#343C71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343C71

10.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343C71	#FFFFFF	#000000	##FFFFFF
##343C71	1.00	10.34	2.03	10.34
#FFFFFF	10.34	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#264373

Deuteranopia (green-blind)

#1F3E70

Tritanopia (blue-blind)

#1A4751

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #343c71;
/* rgb */ color: rgb(52, 60, 113);
/* oklch */ color: oklch(37.7% 0.091 274.8);

Tailwind

colors: {
  custom: {
    50: '#70719a',
    500: '#343c71',
    950: '#000000',
  },
}

SCSS

$custom: #343c71;
$custom-light: #70719a;
$custom-dark: #000000;

JSON

{
  "hex": "#343c71",
  "rgb": {
    "r": 52,
    "g": 60,
    "b": 113
  },
  "hsl": {
    "h": 232.131,
    "s": 36.97,
    "l": 32.353
  },
  "oklch": {
    "l": 0.37709,
    "c": 0.09055,
    "h": 274.8
  },
  "luminance": 0.05154
}

Semantic roles & 50–950 ramp

primary

#343C71

secondary

#A19960

accent

#BE5BCD

background

#F7F6F9

surface

#EDECF2

border

#C8C7CC

text

#08070E

muted

#7B7A7E

Preview Lab

Preview with #343C71

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

Preview Lab → · Contrast checker → · Palette generator →