#343B90#343B90

#343B90 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.9% C 0.139 H 274.7°. Best body text is #FFFFFF at 9.66:1 contrast (WCAG AA passes).

Color values

HEX	#343B90
RGB	rgb(52, 59, 144)
HSL	hsl(235, 47%, 38%)
HSV	hsv(235, 64%, 56%)
CMYK	cmyk(63.9%, 59%, 0%, 43.5%)
CIE-LAB	lab(29.08, 24.91, -48.06)
CIE-LCH	lch(29.08, 54.13, 297.39°)
OKLab	oklab(39.85% 0.0112 -0.1382)
OKLCH	oklch(39.85% 0.139 274.7)
XYZ	xyz(8.0125, 5.8710, 27.0911)
Luminance	0.0587 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343B90 #908934

analogous

#346990 #343B90 #5B3490

triadic

#343B90 #90343B #3B9034

tetradic

#343B90 #903469 #908934 #34905B

square

#343B90 #903469 #908934 #34905B

split-complementary

#343B90 #905B34 #699034

monochromatic

#141636 #242963 #343B90 #454EBC #7279CC

Accessibility & contrast

On white

9.66

#343B90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#343B90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343B90

9.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343B90	#FFFFFF	#000000	##FFFFFF
##343B90	1.00	9.66	2.17	9.66
#FFFFFF	9.66	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004993

Deuteranopia (green-blind)

#00418E

Tritanopia (blue-blind)

#004F5F

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #343b90;
/* rgb */ color: rgb(52, 59, 144);
/* oklch */ color: oklch(39.9% 0.139 274.7);

Tailwind

colors: {
  custom: {
    50: '#7671b1',
    500: '#343b90',
    950: '#000000',
  },
}

SCSS

$custom: #343b90;
$custom-light: #7671b1;
$custom-dark: #000000;

JSON

{
  "hex": "#343b90",
  "rgb": {
    "r": 52,
    "g": 59,
    "b": 144
  },
  "hsl": {
    "h": 235.435,
    "s": 46.939,
    "l": 38.431
  },
  "oklch": {
    "l": 0.39852,
    "c": 0.13862,
    "h": 274.7
  },
  "luminance": 0.05872
}

Semantic roles & 50–950 ramp

primary

#343B90

secondary

#B4AF6B

accent

#CC51D7

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #343B90

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

Preview Lab → · Contrast checker → · Palette generator →