#343B9D#343B9D

#343B9D is a dark, vivid blue. Relative luminance 0.063; OKLCH L 41.0% C 0.157 H 274.0°. Best body text is #FFFFFF at 9.30:1 contrast (WCAG AA passes).

Color values

HEX	#343B9D
RGB	rgb(52, 59, 157)
HSL	hsl(236, 50%, 41%)
HSV	hsv(236, 67%, 62%)
CMYK	cmyk(66.9%, 62.4%, 0%, 38.4%)
CIE-LAB	lab(30.14, 29.57, -54.29)
CIE-LCH	lch(30.14, 61.82, 298.58°)
OKLab	oklab(40.96% 0.011 -0.1565)
OKLCH	oklch(40.96% 0.157 274)
XYZ	xyz(9.0639, 6.2915, 32.6285)
Luminance	0.0629 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343B9D #9D9634

analogous

#346F9D #343B9D #61349D

triadic

#343B9D #9D343B #3B9D34

tetradic

#343B9D #9D346F #9D9634 #349D61

square

#343B9D #9D346F #9D9634 #349D61

split-complementary

#343B9D #9D6134 #6F9D34

monochromatic

#161841 #252A6F #343B9D #4B53C3 #797FD3

Accessibility & contrast

On white

9.30

#343B9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#343B9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343B9D

9.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343B9D	#FFFFFF	#000000	##FFFFFF
##343B9D	1.00	9.30	2.26	9.30
#FFFFFF	9.30	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA0

Deuteranopia (green-blind)

#00429B

Tritanopia (blue-blind)

#005466

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #343b9d;
/* rgb */ color: rgb(52, 59, 157);
/* oklch */ color: oklch(41.0% 0.157 274.0);

Tailwind

colors: {
  custom: {
    50: '#7971bb',
    500: '#343b9d',
    950: '#000000',
  },
}

SCSS

$custom: #343b9d;
$custom-light: #7971bb;
$custom-dark: #000000;

JSON

{
  "hex": "#343b9d",
  "rgb": {
    "r": 52,
    "g": 59,
    "b": 157
  },
  "hsl": {
    "h": 236,
    "s": 50.239,
    "l": 40.98
  },
  "oklch": {
    "l": 0.4096,
    "c": 0.15687,
    "h": 274
  },
  "luminance": 0.06292
}

Semantic roles & 50–950 ramp

primary

#343B9D

secondary

#BBB672

accent

#D04EDA

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #343B9D

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

Preview Lab → · Contrast checker → · Palette generator →