#343B8A#343B8A

#343B8A is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.4% C 0.130 H 274.9°. Best body text is #FFFFFF at 9.82:1 contrast (WCAG AA passes).

Color values

HEX	#343B8A
RGB	rgb(52, 59, 138)
HSL	hsl(235, 45%, 37%)
HSV	hsv(235, 62%, 54%)
CMYK	cmyk(62.3%, 57.2%, 0%, 45.9%)
CIE-LAB	lab(28.62, 22.75, -45.11)
CIE-LCH	lch(28.62, 50.52, 296.76°)
OKLab	oklab(39.36% 0.0111 -0.1295)
OKLCH	oklch(39.36% 0.13 274.9)
XYZ	xyz(7.5661, 5.6924, 24.7399)
Luminance	0.0569 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343B8A #8A8334

analogous

#34668A #343B8A #58348A

triadic

#343B8A #8A343B #3B8A34

tetradic

#343B8A #8A3466 #8A8334 #348A58

square

#343B8A #8A3466 #8A8334 #348A58

split-complementary

#343B8A #8A5834 #668A34

monochromatic

#131531 #23285E #343B8A #454EB6 #6F77C9

Accessibility & contrast

On white

9.82

#343B8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#343B8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343B8A

9.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343B8A	#FFFFFF	#000000	##FFFFFF
##343B8A	1.00	9.82	2.14	9.82
#FFFFFF	9.82	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00478D

Deuteranopia (green-blind)

#004088

Tritanopia (blue-blind)

#004E5C

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #343b8a;
/* rgb */ color: rgb(52, 59, 138);
/* oklch */ color: oklch(39.4% 0.130 274.9);

Tailwind

colors: {
  custom: {
    50: '#7570ad',
    500: '#343b8a',
    950: '#000000',
  },
}

SCSS

$custom: #343b8a;
$custom-light: #7570ad;
$custom-dark: #000000;

JSON

{
  "hex": "#343b8a",
  "rgb": {
    "r": 52,
    "g": 59,
    "b": 138
  },
  "hsl": {
    "h": 235.116,
    "s": 45.263,
    "l": 37.255
  },
  "oklch": {
    "l": 0.39362,
    "c": 0.12995,
    "h": 274.9
  },
  "luminance": 0.05693
}

Semantic roles & 50–950 ramp

primary

#343B8A

secondary

#B1AB69

accent

#CA53D5

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #343B8A

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

Preview Lab → · Contrast checker → · Palette generator →