#343DAA#343DAA

#343DAA is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.5% C 0.172 H 272.9°. Best body text is #FFFFFF at 8.77:1 contrast (WCAG AA passes).

Color values

HEX	#343DAA
RGB	rgb(52, 61, 170)
HSL	hsl(235, 53%, 44%)
HSV	hsv(235, 69%, 67%)
CMYK	cmyk(69.4%, 64.1%, 0%, 33.3%)
CIE-LAB	lab(31.74, 32.92, -59.52)
CIE-LCH	lch(31.74, 68.01, 298.94°)
OKLab	oklab(42.48% 0.0088 -0.1718)
OKLCH	oklch(42.48% 0.172 272.9)
XYZ	xyz(10.3382, 6.9689, 38.8227)
Luminance	0.0697 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.08

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343DAA #AAA134

analogous

#3478AA #343DAA #6634AA

triadic

#343DAA #AA343D #3DAA34

tetradic

#343DAA #AA3478 #AAA134 #34AA66

square

#343DAA #AA3478 #AAA134 #34AA66

split-complementary

#343DAA #AA6634 #78AA34

monochromatic

#171B4C #262C7B #343DAA #515BCA #8087D8

Accessibility & contrast

On white

8.77

#343DAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#343DAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343DAA

8.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343DAA	#FFFFFF	#000000	##FFFFFF
##343DAA	1.00	8.77	2.39	8.77
#FFFFFF	8.77	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050AD

Deuteranopia (green-blind)

#0045A8

Tritanopia (blue-blind)

#00596E

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #343daa;
/* rgb */ color: rgb(52, 61, 170);
/* oklch */ color: oklch(42.5% 0.172 272.9);

Tailwind

colors: {
  custom: {
    50: '#7b72c4',
    500: '#343daa',
    950: '#000000',
  },
}

SCSS

$custom: #343daa;
$custom-light: #7b72c4;
$custom-dark: #000000;

JSON

{
  "hex": "#343daa",
  "rgb": {
    "r": 52,
    "g": 61,
    "b": 170
  },
  "hsl": {
    "h": 235.424,
    "s": 53.153,
    "l": 43.529
  },
  "oklch": {
    "l": 0.42478,
    "c": 0.17201,
    "h": 272.9
  },
  "luminance": 0.0697
}

Semantic roles & 50–950 ramp

primary

#343DAA

secondary

#C1BC78

accent

#D14BDD

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #343DAA

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

Preview Lab → · Contrast checker → · Palette generator →