#343C8D#343C8D

#343C8D is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.8% C 0.133 H 274.4°. Best body text is #FFFFFF at 9.65:1 contrast (WCAG AA passes).

Color values

HEX	#343C8D
RGB	rgb(52, 60, 141)
HSL	hsl(235, 46%, 38%)
HSV	hsv(235, 63%, 55%)
CMYK	cmyk(63.1%, 57.4%, 0%, 44.7%)
CIE-LAB	lab(29.12, 23.16, -46.16)
CIE-LCH	lch(29.12, 51.64, 296.65°)
OKLab	oklab(39.8% 0.0102 -0.1325)
OKLCH	oklch(39.8% 0.133 274.4)
XYZ	xyz(7.8382, 5.8842, 25.9169)
Luminance	0.0588 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343C8D #8D8534

analogous

#34688D #343C8D #59348D

triadic

#343C8D #8D343C #3C8D34

tetradic

#343C8D #8D3468 #8D8534 #348D59

square

#343C8D #8D3468 #8D8534 #348D59

split-complementary

#343C8D #8D5934 #688D34

monochromatic

#131634 #242960 #343C8D #444FBA #7179CB

Accessibility & contrast

On white

9.65

#343C8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#343C8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343C8D

9.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343C8D	#FFFFFF	#000000	##FFFFFF
##343C8D	1.00	9.65	2.18	9.65
#FFFFFF	9.65	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004990

Deuteranopia (green-blind)

#00418B

Tritanopia (blue-blind)

#004F5E

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #343c8d;
/* rgb */ color: rgb(52, 60, 141);
/* oklch */ color: oklch(39.8% 0.133 274.4);

Tailwind

colors: {
  custom: {
    50: '#7571af',
    500: '#343c8d',
    950: '#000000',
  },
}

SCSS

$custom: #343c8d;
$custom-light: #7571af;
$custom-dark: #000000;

JSON

{
  "hex": "#343c8d",
  "rgb": {
    "r": 52,
    "g": 60,
    "b": 141
  },
  "hsl": {
    "h": 234.607,
    "s": 46.114,
    "l": 37.843
  },
  "oklch": {
    "l": 0.39804,
    "c": 0.13294,
    "h": 274.4
  },
  "luminance": 0.05885
}

Semantic roles & 50–950 ramp

primary

#343C8D

secondary

#B3AC6A

accent

#CA52D6

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #343C8D

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

Preview Lab → · Contrast checker → · Palette generator →