#343A9A#343A9A

#343A9A is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.5% C 0.154 H 274.5°. Best body text is #FFFFFF at 9.47:1 contrast (WCAG AA passes).

Color values

HEX	#343A9A
RGB	rgb(52, 58, 154)
HSL	hsl(236, 50%, 40%)
HSV	hsv(236, 66%, 60%)
CMYK	cmyk(66.2%, 62.3%, 0%, 39.6%)
CIE-LAB	lab(29.63, 29.15, -53.29)
CIE-LCH	lch(29.63, 60.74, 298.68°)
OKLab	oklab(40.51% 0.012 -0.1535)
OKLCH	oklch(40.51% 0.154 274.5)
XYZ	xyz(8.7600, 6.0885, 31.2791)
Luminance	0.0609 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343A9A #9A9434

analogous

#346D9A #343A9A #61349A

triadic

#343A9A #9A343A #3A9A34

tetradic

#343A9A #9A346D #9A9434 #349A61

square

#343A9A #9A346D #9A9434 #349A61

split-complementary

#343A9A #9A6134 #6D9A34

monochromatic

#15183E #25296C #343A9A #4951C2 #777DD1

Accessibility & contrast

On white

9.47

#343A9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#343A9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343A9A

9.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343A9A	#FFFFFF	#000000	##FFFFFF
##343A9A	1.00	9.47	2.22	9.47
#FFFFFF	9.47	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A9D

Deuteranopia (green-blind)

#004198

Tritanopia (blue-blind)

#005264

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #343a9a;
/* rgb */ color: rgb(52, 58, 154);
/* oklch */ color: oklch(40.5% 0.154 274.5);

Tailwind

colors: {
  custom: {
    50: '#7870b9',
    500: '#343a9a',
    950: '#000000',
  },
}

SCSS

$custom: #343a9a;
$custom-light: #7870b9;
$custom-dark: #000000;

JSON

{
  "hex": "#343a9a",
  "rgb": {
    "r": 52,
    "g": 58,
    "b": 154
  },
  "hsl": {
    "h": 236.471,
    "s": 49.515,
    "l": 40.392
  },
  "oklch": {
    "l": 0.40512,
    "c": 0.154,
    "h": 274.5
  },
  "luminance": 0.06089
}

Semantic roles & 50–950 ramp

primary

#343A9A

secondary

#BAB570

accent

#D14FD9

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0711

muted

#7C7A80

Preview Lab

Preview with #343A9A

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

Preview Lab → · Contrast checker → · Palette generator →