#343A8D#343A8D

#343A8D is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.4% C 0.136 H 275.2°. Best body text is #FFFFFF at 9.83:1 contrast (WCAG AA passes).

Color values

HEX	#343A8D
RGB	rgb(52, 58, 141)
HSL	hsl(236, 46%, 38%)
HSV	hsv(236, 63%, 55%)
CMYK	cmyk(63.1%, 58.9%, 0%, 44.7%)
CIE-LAB	lab(28.59, 24.50, -47.02)
CIE-LCH	lch(28.59, 53.02, 297.52°)
OKLab	oklab(39.41% 0.0122 -0.1351)
OKLCH	oklch(39.41% 0.136 275.2)
XYZ	xyz(7.7354, 5.6786, 25.8826)
Luminance	0.0568 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343A8D #8D8734

analogous

#34668D #343A8D #5A348D

triadic

#343A8D #8D343A #3A8D34

tetradic

#343A8D #8D3466 #8D8734 #348D5A

square

#343A8D #8D3466 #8D8734 #348D5A

split-complementary

#343A8D #8D5A34 #668D34

monochromatic

#131534 #242860 #343A8D #444CBA #7177CB

Accessibility & contrast

On white

9.83

#343A8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#343A8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343A8D

9.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343A8D	#FFFFFF	#000000	##FFFFFF
##343A8D	1.00	9.83	2.14	9.83
#FFFFFF	9.83	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004790

Deuteranopia (green-blind)

#00408B

Tritanopia (blue-blind)

#004E5D

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #343a8d;
/* rgb */ color: rgb(52, 58, 141);
/* oklch */ color: oklch(39.4% 0.136 275.2);

Tailwind

colors: {
  custom: {
    50: '#7570af',
    500: '#343a8d',
    950: '#000000',
  },
}

SCSS

$custom: #343a8d;
$custom-light: #7570af;
$custom-dark: #000000;

JSON

{
  "hex": "#343a8d",
  "rgb": {
    "r": 52,
    "g": 58,
    "b": 141
  },
  "hsl": {
    "h": 235.955,
    "s": 46.114,
    "l": 37.843
  },
  "oklch": {
    "l": 0.39408,
    "c": 0.13566,
    "h": 275.2
  },
  "luminance": 0.05679
}

Semantic roles & 50–950 ramp

primary

#343A8D

secondary

#B3AE6A

accent

#CD52D6

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #343A8D

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

Preview Lab → · Contrast checker → · Palette generator →