#343A99#343A99

#343A99 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.4% C 0.153 H 274.5°. Best body text is #FFFFFF at 9.50:1 contrast (WCAG AA passes).

Color values

HEX	#343A99
RGB	rgb(52, 58, 153)
HSL	hsl(236, 49%, 40%)
HSV	hsv(236, 66%, 60%)
CMYK	cmyk(66%, 62.1%, 0%, 40%)
CIE-LAB	lab(29.55, 28.80, -52.81)
CIE-LCH	lch(29.55, 60.15, 298.60°)
OKLab	oklab(40.42% 0.012 -0.1521)
OKLCH	oklch(40.42% 0.153 274.5)
XYZ	xyz(8.6771, 6.0553, 30.8423)
Luminance	0.0606 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343A99 #999334

analogous

#346C99 #343A99 #613499

triadic

#343A99 #99343A #3A9934

tetradic

#343A99 #99346C #999334 #349961

square

#343A99 #99346C #999334 #349961

split-complementary

#343A99 #996134 #6C9934

monochromatic

#15173E #24296B #343A99 #4950C1 #777CD1

Accessibility & contrast

On white

9.50

#343A99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#343A99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343A99

9.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343A99	#FFFFFF	#000000	##FFFFFF
##343A99	1.00	9.50	2.21	9.50
#FFFFFF	9.50	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A9C

Deuteranopia (green-blind)

#004197

Tritanopia (blue-blind)

#005264

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #343a99;
/* rgb */ color: rgb(52, 58, 153);
/* oklch */ color: oklch(40.4% 0.153 274.5);

Tailwind

colors: {
  custom: {
    50: '#7870b8',
    500: '#343a99',
    950: '#000000',
  },
}

SCSS

$custom: #343a99;
$custom-light: #7870b8;
$custom-dark: #000000;

JSON

{
  "hex": "#343a99",
  "rgb": {
    "r": 52,
    "g": 58,
    "b": 153
  },
  "hsl": {
    "h": 236.436,
    "s": 49.268,
    "l": 40.196
  },
  "oklch": {
    "l": 0.40425,
    "c": 0.15261,
    "h": 274.5
  },
  "luminance": 0.06056
}

Semantic roles & 50–950 ramp

primary

#343A99

secondary

#B9B570

accent

#D14FD9

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0711

muted

#7C7A80

Preview Lab

Preview with #343A99

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

Preview Lab → · Contrast checker → · Palette generator →