#343BA9#343BA9

#343BA9 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 42.0% C 0.173 H 273.4°. Best body text is #FFFFFF at 8.96:1 contrast (WCAG AA passes).

Color values

HEX	#343BA9
RGB	rgb(52, 59, 169)
HSL	hsl(236, 53%, 43%)
HSV	hsv(236, 69%, 66%)
CMYK	cmyk(69.2%, 65.1%, 0%, 33.7%)
CIE-LAB	lab(31.16, 33.84, -59.85)
CIE-LCH	lch(31.16, 68.76, 299.48°)
OKLab	oklab(42.03% 0.0103 -0.1728)
OKLCH	oklch(42.03% 0.173 273.4)
XYZ	xyz(10.1392, 6.7216, 38.2915)
Luminance	0.0672 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.08

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343BA9 #A9A234

analogous

#3475A9 #343BA9 #6734A9

triadic

#343BA9 #A9343B #3BA934

tetradic

#343BA9 #A93475 #A9A234 #34A967

square

#343BA9 #A93475 #A9A234 #34A967

split-complementary

#343BA9 #A96734 #75A934

monochromatic

#171A4B #262B7A #343BA9 #5158C9 #8085D8

Accessibility & contrast

On white

8.96

#343BA9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#343BA9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343BA9

8.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343BA9	#FFFFFF	#000000	##FFFFFF
##343BA9	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)

#004FAC

Deuteranopia (green-blind)

#0044A7

Tritanopia (blue-blind)

#00586C

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #343ba9;
/* rgb */ color: rgb(52, 59, 169);
/* oklch */ color: oklch(42.0% 0.173 273.4);

Tailwind

colors: {
  custom: {
    50: '#7b71c4',
    500: '#343ba9',
    950: '#000000',
  },
}

SCSS

$custom: #343ba9;
$custom-light: #7b71c4;
$custom-dark: #000000;

JSON

{
  "hex": "#343ba9",
  "rgb": {
    "r": 52,
    "g": 59,
    "b": 169
  },
  "hsl": {
    "h": 236.41,
    "s": 52.941,
    "l": 43.333
  },
  "oklch": {
    "l": 0.42033,
    "c": 0.1731,
    "h": 273.4
  },
  "luminance": 0.06723
}

Semantic roles & 50–950 ramp

primary

#343BA9

secondary

#C1BD78

accent

#D44BDC

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #343BA9

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

Preview Lab → · Contrast checker → · Palette generator →