#343D8D#343D8D

#343D8D is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.0% C 0.132 H 274.0°. Best body text is #FFFFFF at 9.55:1 contrast (WCAG AA passes).

Color values

HEX	#343D8D
RGB	rgb(52, 61, 141)
HSL	hsl(234, 46%, 38%)
HSV	hsv(234, 63%, 55%)
CMYK	cmyk(63.1%, 56.7%, 0%, 44.7%)
CIE-LAB	lab(29.39, 22.49, -45.72)
CIE-LCH	lch(29.39, 50.95, 296.19°)
OKLab	oklab(40.01% 0.0092 -0.1313)
OKLCH	oklch(40.01% 0.132 274)
XYZ	xyz(7.8911, 5.9900, 25.9345)
Luminance	0.0599 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343D8D #8D8434

analogous

#34698D #343D8D #58348D

triadic

#343D8D #8D343D #3D8D34

tetradic

#343D8D #8D3469 #8D8434 #348D58

square

#343D8D #8D3469 #8D8434 #348D58

split-complementary

#343D8D #8D5834 #698D34

monochromatic

#131634 #242A60 #343D8D #4450BA #717ACB

Accessibility & contrast

On white

9.55

#343D8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#343D8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343D8D

9.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343D8D	#FFFFFF	#000000	##FFFFFF
##343D8D	1.00	9.55	2.20	9.55
#FFFFFF	9.55	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004990

Deuteranopia (green-blind)

#00418B

Tritanopia (blue-blind)

#00505F

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #343d8d;
/* rgb */ color: rgb(52, 61, 141);
/* oklch */ color: oklch(40.0% 0.132 274.0);

Tailwind

colors: {
  custom: {
    50: '#7572af',
    500: '#343d8d',
    950: '#000000',
  },
}

SCSS

$custom: #343d8d;
$custom-light: #7572af;
$custom-dark: #000000;

JSON

{
  "hex": "#343d8d",
  "rgb": {
    "r": 52,
    "g": 61,
    "b": 141
  },
  "hsl": {
    "h": 233.933,
    "s": 46.114,
    "l": 37.843
  },
  "oklch": {
    "l": 0.40005,
    "c": 0.13158,
    "h": 274
  },
  "luminance": 0.05991
}

Semantic roles & 50–950 ramp

primary

#343D8D

secondary

#B3AB6A

accent

#C852D6

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#090810

muted

#7B7B7F

Preview Lab

Preview with #343D8D

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

Preview Lab → · Contrast checker → · Palette generator →