#343D89#343D89

#343D89 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.7% C 0.126 H 274.1°. Best body text is #FFFFFF at 9.66:1 contrast (WCAG AA passes).

Color values

HEX	#343D89
RGB	rgb(52, 61, 137)
HSL	hsl(234, 45%, 37%)
HSV	hsv(234, 62%, 54%)
CMYK	cmyk(62%, 55.5%, 0%, 46.3%)
CIE-LAB	lab(29.09, 21.04, -43.73)
CIE-LCH	lch(29.09, 48.53, 295.70°)
OKLab	oklab(39.69% 0.009 -0.1254)
OKLCH	oklch(39.69% 0.126 274.1)
XYZ	xyz(7.5988, 5.8731, 24.3952)
Luminance	0.0587 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343D89 #898034

analogous

#346889 #343D89 #563489

triadic

#343D89 #89343D #3D8934

tetradic

#343D89 #893468 #898034 #348956

square

#343D89 #893468 #898034 #348956

split-complementary

#343D89 #895634 #688934

monochromatic

#121530 #23295D #343D89 #4551B5 #6F78C8

Accessibility & contrast

On white

9.66

#343D89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#343D89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343D89

9.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343D89	#FFFFFF	#000000	##FFFFFF
##343D89	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)

#0A488C

Deuteranopia (green-blind)

#004187

Tritanopia (blue-blind)

#004F5D

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #343d89;
/* rgb */ color: rgb(52, 61, 137);
/* oklch */ color: oklch(39.7% 0.126 274.1);

Tailwind

colors: {
  custom: {
    50: '#7472ac',
    500: '#343d89',
    950: '#000000',
  },
}

SCSS

$custom: #343d89;
$custom-light: #7472ac;
$custom-dark: #000000;

JSON

{
  "hex": "#343d89",
  "rgb": {
    "r": 52,
    "g": 61,
    "b": 137
  },
  "hsl": {
    "h": 233.647,
    "s": 44.974,
    "l": 37.059
  },
  "oklch": {
    "l": 0.39688,
    "c": 0.12573,
    "h": 274.1
  },
  "luminance": 0.05874
}

Semantic roles & 50–950 ramp

primary

#343D89

secondary

#B0A968

accent

#C753D5

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#090810

muted

#7B7B7F

Preview Lab

Preview with #343D89

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

Preview Lab → · Contrast checker → · Palette generator →