#343EA0#343EA0

#343EA0 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.8% C 0.157 H 273.1°. Best body text is #FFFFFF at 8.96:1 contrast (WCAG AA passes).

Color values

HEX	#343EA0
RGB	rgb(52, 62, 160)
HSL	hsl(234, 51%, 42%)
HSV	hsv(234, 68%, 63%)
CMYK	cmyk(67.5%, 61.2%, 0%, 37.3%)
CIE-LAB	lab(31.14, 28.69, -54.47)
CIE-LCH	lch(31.14, 61.56, 297.78°)
OKLab	oklab(41.78% 0.0084 -0.157)
OKLCH	oklch(41.78% 0.157 273.1)
XYZ	xyz(9.4818, 6.7125, 34.0468)
Luminance	0.0671 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343EA0 #A09634

analogous

#3474A0 #343EA0 #6034A0

triadic

#343EA0 #A0343E #3EA034

tetradic

#343EA0 #A03474 #A09634 #34A060

square

#343EA0 #A03474 #A09634 #34A060

split-complementary

#343EA0 #A06034 #74A034

monochromatic

#161A44 #252C72 #343EA0 #4C57C5 #7A83D4

Accessibility & contrast

On white

8.96

#343EA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#343EA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343EA0

8.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343EA0	#FFFFFF	#000000	##FFFFFF
##343EA0	1.00	8.96	2.34	8.96
#FFFFFF	8.96	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA3

Deuteranopia (green-blind)

#00459E

Tritanopia (blue-blind)

#005669

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #343ea0;
/* rgb */ color: rgb(52, 62, 160);
/* oklch */ color: oklch(41.8% 0.157 273.1);

Tailwind

colors: {
  custom: {
    50: '#7973bd',
    500: '#343ea0',
    950: '#000000',
  },
}

SCSS

$custom: #343ea0;
$custom-light: #7973bd;
$custom-dark: #000000;

JSON

{
  "hex": "#343ea0",
  "rgb": {
    "r": 52,
    "g": 62,
    "b": 160
  },
  "hsl": {
    "h": 234.444,
    "s": 50.943,
    "l": 41.569
  },
  "oklch": {
    "l": 0.4178,
    "c": 0.15718,
    "h": 273.1
  },
  "luminance": 0.06713
}

Semantic roles & 50–950 ramp

primary

#343EA0

secondary

#BDB673

accent

#CD4DDA

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #343EA0

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

Preview Lab → · Contrast checker → · Palette generator →