#343B8D#343B8D

#343B8D is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.6% C 0.134 H 274.8°. Best body text is #FFFFFF at 9.74:1 contrast (WCAG AA passes).

Color values

HEX	#343B8D
RGB	rgb(52, 59, 141)
HSL	hsl(235, 46%, 38%)
HSV	hsv(235, 63%, 55%)
CMYK	cmyk(63.1%, 58.2%, 0%, 44.7%)
CIE-LAB	lab(28.85, 23.83, -46.59)
CIE-LCH	lch(28.85, 52.33, 297.09°)
OKLab	oklab(39.61% 0.0112 -0.1338)
OKLCH	oklch(39.61% 0.134 274.8)
XYZ	xyz(7.7863, 5.7805, 25.8996)
Luminance	0.0578 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343B8D #8D8634

analogous

#34678D #343B8D #59348D

triadic

#343B8D #8D343B #3B8D34

tetradic

#343B8D #8D3467 #8D8634 #348D59

square

#343B8D #8D3467 #8D8634 #348D59

split-complementary

#343B8D #8D5934 #678D34

monochromatic

#131634 #242860 #343B8D #444EBA #7178CB

Accessibility & contrast

On white

9.74

#343B8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#343B8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343B8D

9.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343B8D	#FFFFFF	#000000	##FFFFFF
##343B8D	1.00	9.74	2.16	9.74
#FFFFFF	9.74	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004890

Deuteranopia (green-blind)

#00408B

Tritanopia (blue-blind)

#004F5E

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #343b8d;
/* rgb */ color: rgb(52, 59, 141);
/* oklch */ color: oklch(39.6% 0.134 274.8);

Tailwind

colors: {
  custom: {
    50: '#7570af',
    500: '#343b8d',
    950: '#000000',
  },
}

SCSS

$custom: #343b8d;
$custom-light: #7570af;
$custom-dark: #000000;

JSON

{
  "hex": "#343b8d",
  "rgb": {
    "r": 52,
    "g": 59,
    "b": 141
  },
  "hsl": {
    "h": 235.281,
    "s": 46.114,
    "l": 37.843
  },
  "oklch": {
    "l": 0.39605,
    "c": 0.13431,
    "h": 274.8
  },
  "luminance": 0.05781
}

Semantic roles & 50–950 ramp

primary

#343B8D

secondary

#B3AD6A

accent

#CB52D6

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #343B8D

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

Preview Lab → · Contrast checker → · Palette generator →