#343E9F#343E9F

#343E9F is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.7% C 0.156 H 273.1°. Best body text is #FFFFFF at 8.99:1 contrast (WCAG AA passes).

Color values

HEX	#343E9F
RGB	rgb(52, 62, 159)
HSL	hsl(234, 51%, 41%)
HSV	hsv(234, 67%, 62%)
CMYK	cmyk(67.3%, 61%, 0%, 37.6%)
CIE-LAB	lab(31.06, 28.33, -54.00)
CIE-LCH	lch(31.06, 60.98, 297.68°)
OKLab	oklab(41.69% 0.0084 -0.1556)
OKLCH	oklch(41.69% 0.156 273.1)
XYZ	xyz(9.3947, 6.6777, 33.5880)
Luminance	0.0668 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343E9F #9F9534

analogous

#34749F #343E9F #60349F

triadic

#343E9F #9F343E #3E9F34

tetradic

#343E9F #9F3474 #9F9534 #349F60

square

#343E9F #9F3474 #9F9534 #349F60

split-complementary

#343E9F #9F6034 #749F34

monochromatic

#161A43 #252C71 #343E9F #4C57C4 #7A82D3

Accessibility & contrast

On white

8.99

#343E9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#343E9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343E9F

8.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343E9F	#FFFFFF	#000000	##FFFFFF
##343E9F	1.00	8.99	2.34	8.99
#FFFFFF	8.99	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA2

Deuteranopia (green-blind)

#00449D

Tritanopia (blue-blind)

#005668

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #343e9f;
/* rgb */ color: rgb(52, 62, 159);
/* oklch */ color: oklch(41.7% 0.156 273.1);

Tailwind

colors: {
  custom: {
    50: '#7973bc',
    500: '#343e9f',
    950: '#000000',
  },
}

SCSS

$custom: #343e9f;
$custom-light: #7973bc;
$custom-dark: #000000;

JSON

{
  "hex": "#343e9f",
  "rgb": {
    "r": 52,
    "g": 62,
    "b": 159
  },
  "hsl": {
    "h": 234.393,
    "s": 50.711,
    "l": 41.373
  },
  "oklch": {
    "l": 0.41694,
    "c": 0.15581,
    "h": 273.1
  },
  "luminance": 0.06679
}

Semantic roles & 50–950 ramp

primary

#343E9F

secondary

#BCB573

accent

#CD4EDA

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #343E9F

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

Preview Lab → · Contrast checker → · Palette generator →