#343C83#343C83

#343C83 is a dark, moderate blue. Relative luminance 0.056; OKLCH L 39.0% C 0.118 H 274.7°. Best body text is #FFFFFF at 9.91:1 contrast (WCAG AA passes).

Color values

HEX	#343C83
RGB	rgb(52, 60, 131)
HSL	hsl(234, 43%, 36%)
HSV	hsv(234, 60%, 51%)
CMYK	cmyk(60.3%, 54.2%, 0%, 48.6%)
CIE-LAB	lab(28.38, 19.56, -41.15)
CIE-LCH	lch(28.38, 45.56, 295.42°)
OKLab	oklab(39.02% 0.0097 -0.1178)
OKLCH	oklch(39.02% 0.118 274.7)
XYZ	xyz(7.1274, 5.5999, 22.1736)
Luminance	0.0560 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343C83 #837B34

analogous

#346383 #343C83 #533483

triadic

#343C83 #83343C #3C8334

tetradic

#343C83 #833463 #837B34 #348353

square

#343C83 #833463 #837B34 #348353

split-complementary

#343C83 #835334 #638334

monochromatic

#11142B #232857 #343C83 #4550AF #6D75C5

Accessibility & contrast

On white

9.91

#343C83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#343C83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343C83

9.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343C83	#FFFFFF	#000000	##FFFFFF
##343C83	1.00	9.91	2.12	9.91
#FFFFFF	9.91	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#134685

Deuteranopia (green-blind)

#004082

Tritanopia (blue-blind)

#004C59

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #343c83;
/* rgb */ color: rgb(52, 60, 131);
/* oklch */ color: oklch(39.0% 0.118 274.7);

Tailwind

colors: {
  custom: {
    50: '#7371a8',
    500: '#343c83',
    950: '#000000',
  },
}

SCSS

$custom: #343c83;
$custom-light: #7371a8;
$custom-dark: #000000;

JSON

{
  "hex": "#343c83",
  "rgb": {
    "r": 52,
    "g": 60,
    "b": 131
  },
  "hsl": {
    "h": 233.924,
    "s": 43.169,
    "l": 35.882
  },
  "oklch": {
    "l": 0.39016,
    "c": 0.11822,
    "h": 274.7
  },
  "luminance": 0.056
}

Semantic roles & 50–950 ramp

primary

#343C83

secondary

#ADA666

accent

#C655D3

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#09070F

muted

#7B7A7F

Preview Lab

Preview with #343C83

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

Preview Lab → · Contrast checker → · Palette generator →