#343A9E#343A9E

#343A9E is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.9% C 0.160 H 274.2°. Best body text is #FFFFFF at 9.35:1 contrast (WCAG AA passes).

Color values

HEX	#343A9E
RGB	rgb(52, 58, 158)
HSL	hsl(237, 50%, 41%)
HSV	hsv(237, 67%, 62%)
CMYK	cmyk(67.1%, 63.3%, 0%, 38%)
CIE-LAB	lab(29.97, 30.58, -55.17)
CIE-LCH	lch(29.97, 63.08, 299.00°)
OKLab	oklab(40.86% 0.0118 -0.1591)
OKLCH	oklch(40.86% 0.16 274.2)
XYZ	xyz(9.0987, 6.2240, 33.0630)
Luminance	0.0622 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343A9E #9E9834

analogous

#346F9E #343A9E #63349E

triadic

#343A9E #9E343A #3A9E34

tetradic

#343A9E #9E346F #9E9834 #349E63

square

#343A9E #9E346F #9E9834 #349E63

split-complementary

#343A9E #9E6334 #6F9E34

monochromatic

#161842 #252970 #343A9E #4B52C4 #797ED3

Accessibility & contrast

On white

9.35

#343A9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#343A9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343A9E

9.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343A9E	#FFFFFF	#000000	##FFFFFF
##343A9E	1.00	9.35	2.25	9.35
#FFFFFF	9.35	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BA1

Deuteranopia (green-blind)

#00429C

Tritanopia (blue-blind)

#005366

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #343a9e;
/* rgb */ color: rgb(52, 58, 158);
/* oklch */ color: oklch(40.9% 0.160 274.2);

Tailwind

colors: {
  custom: {
    50: '#7970bb',
    500: '#343a9e',
    950: '#000000',
  },
}

SCSS

$custom: #343a9e;
$custom-light: #7970bb;
$custom-dark: #000000;

JSON

{
  "hex": "#343a9e",
  "rgb": {
    "r": 52,
    "g": 58,
    "b": 158
  },
  "hsl": {
    "h": 236.604,
    "s": 50.476,
    "l": 41.176
  },
  "oklch": {
    "l": 0.40864,
    "c": 0.1595,
    "h": 274.2
  },
  "luminance": 0.06225
}

Semantic roles & 50–950 ramp

primary

#343A9E

secondary

#BCB872

accent

#D24EDA

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #343A9E

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

Preview Lab → · Contrast checker → · Palette generator →