#343E87#343E87

#343E87 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.7% C 0.121 H 273.7°. Best body text is #FFFFFF at 9.61:1 contrast (WCAG AA passes).

Color values

HEX	#343E87
RGB	rgb(52, 62, 135)
HSL	hsl(233, 44%, 37%)
HSV	hsv(233, 61%, 53%)
CMYK	cmyk(61.5%, 54.1%, 0%, 47.1%)
CIE-LAB	lab(29.22, 19.65, -42.28)
CIE-LCH	lch(29.22, 46.62, 294.92°)
OKLab	oklab(39.74% 0.0078 -0.1211)
OKLCH	oklch(39.74% 0.121 273.7)
XYZ	xyz(7.5105, 5.9240, 23.6646)
Luminance	0.0592 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343E87 #877D34

analogous

#346887 #343E87 #543487

triadic

#343E87 #87343E #3E8734

tetradic

#343E87 #873468 #877D34 #348754

square

#343E87 #873468 #877D34 #348754

split-complementary

#343E87 #875434 #688734

monochromatic

#12152F #232A5B #343E87 #4552B3 #6E79C7

Accessibility & contrast

On white

9.61

#343E87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#343E87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343E87

9.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343E87	#FFFFFF	#000000	##FFFFFF
##343E87	1.00	9.61	2.19	9.61
#FFFFFF	9.61	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#13498A

Deuteranopia (green-blind)

#004185

Tritanopia (blue-blind)

#004F5C

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #343e87;
/* rgb */ color: rgb(52, 62, 135);
/* oklch */ color: oklch(39.7% 0.121 273.7);

Tailwind

colors: {
  custom: {
    50: '#7473aa',
    500: '#343e87',
    950: '#000000',
  },
}

SCSS

$custom: #343e87;
$custom-light: #7473aa;
$custom-dark: #000000;

JSON

{
  "hex": "#343e87",
  "rgb": {
    "r": 52,
    "g": 62,
    "b": 135
  },
  "hsl": {
    "h": 232.771,
    "s": 44.385,
    "l": 36.667
  },
  "oklch": {
    "l": 0.39739,
    "c": 0.12138,
    "h": 273.7
  },
  "luminance": 0.05925
}

Semantic roles & 50–950 ramp

primary

#343E87

secondary

#AFA767

accent

#C554D4

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#090810

muted

#7B7B7F

Preview Lab

Preview with #343E87

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

Preview Lab → · Contrast checker → · Palette generator →