#343BA3#343BA3

#343BA3 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.5% C 0.165 H 273.7°. Best body text is #FFFFFF at 9.13:1 contrast (WCAG AA passes).

Color values

HEX	#343BA3
RGB	rgb(52, 59, 163)
HSL	hsl(236, 52%, 42%)
HSV	hsv(236, 68%, 64%)
CMYK	cmyk(68.1%, 63.8%, 0%, 36.1%)
CIE-LAB	lab(30.64, 31.71, -57.09)
CIE-LCH	lch(30.64, 65.31, 299.05°)
OKLab	oklab(41.49% 0.0107 -0.1647)
OKLCH	oklch(41.49% 0.165 273.7)
XYZ	xyz(9.5888, 6.5015, 35.3928)
Luminance	0.0650 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343BA3 #A39C34

analogous

#3473A3 #343BA3 #6434A3

triadic

#343BA3 #A3343B #3BA334

tetradic

#343BA3 #A33473 #A39C34 #34A364

square

#343BA3 #A33473 #A39C34 #34A364

split-complementary

#343BA3 #A36434 #73A334

monochromatic

#161946 #252A75 #343BA3 #4E55C6 #7C82D5

Accessibility & contrast

On white

9.13

#343BA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#343BA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343BA3

9.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343BA3	#FFFFFF	#000000	##FFFFFF
##343BA3	1.00	9.13	2.30	9.13
#FFFFFF	9.13	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA6

Deuteranopia (green-blind)

#0043A1

Tritanopia (blue-blind)

#005669

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #343ba3;
/* rgb */ color: rgb(52, 59, 163);
/* oklch */ color: oklch(41.5% 0.165 273.7);

Tailwind

colors: {
  custom: {
    50: '#7a71bf',
    500: '#343ba3',
    950: '#000000',
  },
}

SCSS

$custom: #343ba3;
$custom-light: #7a71bf;
$custom-dark: #000000;

JSON

{
  "hex": "#343ba3",
  "rgb": {
    "r": 52,
    "g": 59,
    "b": 163
  },
  "hsl": {
    "h": 236.216,
    "s": 51.628,
    "l": 42.157
  },
  "oklch": {
    "l": 0.41491,
    "c": 0.16505,
    "h": 273.7
  },
  "luminance": 0.06502
}

Semantic roles & 50–950 ramp

primary

#343BA3

secondary

#BEB975

accent

#D24DDB

background

#F8F6FB

surface

#EFECF7

border

#CAC7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #343BA3

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

Preview Lab → · Contrast checker → · Palette generator →