#343D8A#343D8A

#343D8A is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.8% C 0.127 H 274.1°. Best body text is #FFFFFF at 9.63:1 contrast (WCAG AA passes).

Color values

HEX	#343D8A
RGB	rgb(52, 61, 138)
HSL	hsl(234, 45%, 37%)
HSV	hsv(234, 62%, 54%)
CMYK	cmyk(62.3%, 55.8%, 0%, 45.9%)
CIE-LAB	lab(29.16, 21.41, -44.23)
CIE-LCH	lch(29.16, 49.14, 295.82°)
OKLab	oklab(39.77% 0.0091 -0.1269)
OKLCH	oklch(39.77% 0.127 274.1)
XYZ	xyz(7.6709, 5.9019, 24.7748)
Luminance	0.0590 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343D8A #8A8134

analogous

#34688A #343D8A #56348A

triadic

#343D8A #8A343D #3D8A34

tetradic

#343D8A #8A3468 #8A8134 #348A56

square

#343D8A #8A3468 #8A8134 #348A56

split-complementary

#343D8A #8A5634 #688A34

monochromatic

#131631 #23295E #343D8A #4551B6 #6F79C9

Accessibility & contrast

On white

9.63

#343D8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#343D8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343D8A

9.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343D8A	#FFFFFF	#000000	##FFFFFF
##343D8A	1.00	9.63	2.18	9.63
#FFFFFF	9.63	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#08498D

Deuteranopia (green-blind)

#004188

Tritanopia (blue-blind)

#004F5D

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #343d8a;
/* rgb */ color: rgb(52, 61, 138);
/* oklch */ color: oklch(39.8% 0.127 274.1);

Tailwind

colors: {
  custom: {
    50: '#7572ad',
    500: '#343d8a',
    950: '#000000',
  },
}

SCSS

$custom: #343d8a;
$custom-light: #7572ad;
$custom-dark: #000000;

JSON

{
  "hex": "#343d8a",
  "rgb": {
    "r": 52,
    "g": 61,
    "b": 138
  },
  "hsl": {
    "h": 233.721,
    "s": 45.263,
    "l": 37.255
  },
  "oklch": {
    "l": 0.39766,
    "c": 0.1272,
    "h": 274.1
  },
  "luminance": 0.05903
}

Semantic roles & 50–950 ramp

primary

#343D8A

secondary

#B1A969

accent

#C753D5

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#090810

muted

#7B7B7F

Preview Lab

Preview with #343D8A

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

Preview Lab → · Contrast checker → · Palette generator →