#343A8A#343A8A

#343A8A is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.2% C 0.131 H 275.3°. Best body text is #FFFFFF at 9.91:1 contrast (WCAG AA passes).

Color values

HEX	#343A8A
RGB	rgb(52, 58, 138)
HSL	hsl(236, 45%, 37%)
HSV	hsv(236, 62%, 54%)
CMYK	cmyk(62.3%, 58%, 0%, 45.9%)
CIE-LAB	lab(28.36, 23.42, -45.54)
CIE-LCH	lch(28.36, 51.21, 297.21°)
OKLab	oklab(39.16% 0.0121 -0.1308)
OKLCH	oklch(39.16% 0.131 275.3)
XYZ	xyz(7.5152, 5.5906, 24.7229)
Luminance	0.0559 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343A8A #8A8434

analogous

#34658A #343A8A #59348A

triadic

#343A8A #8A343A #3A8A34

tetradic

#343A8A #8A3465 #8A8434 #348A59

square

#343A8A #8A3465 #8A8434 #348A59

split-complementary

#343A8A #8A5934 #658A34

monochromatic

#131531 #23275E #343A8A #454DB6 #6F76C9

Accessibility & contrast

On white

9.91

#343A8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#343A8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343A8A

9.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343A8A	#FFFFFF	#000000	##FFFFFF
##343A8A	1.00	9.91	2.12	9.91
#FFFFFF	9.91	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00478D

Deuteranopia (green-blind)

#003F88

Tritanopia (blue-blind)

#004D5C

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #343a8a;
/* rgb */ color: rgb(52, 58, 138);
/* oklch */ color: oklch(39.2% 0.131 275.3);

Tailwind

colors: {
  custom: {
    50: '#7570ad',
    500: '#343a8a',
    950: '#000000',
  },
}

SCSS

$custom: #343a8a;
$custom-light: #7570ad;
$custom-dark: #000000;

JSON

{
  "hex": "#343a8a",
  "rgb": {
    "r": 52,
    "g": 58,
    "b": 138
  },
  "hsl": {
    "h": 235.814,
    "s": 45.263,
    "l": 37.255
  },
  "oklch": {
    "l": 0.39162,
    "c": 0.13132,
    "h": 275.3
  },
  "luminance": 0.05591
}

Semantic roles & 50–950 ramp

primary

#343A8A

secondary

#B1AC69

accent

#CC53D5

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #343A8A

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

Preview Lab → · Contrast checker → · Palette generator →