#343EAA#343EAA

#343EAA is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.7% C 0.171 H 272.7°. Best body text is #FFFFFF at 8.69:1 contrast (WCAG AA passes).

Color values

HEX	#343EAA
RGB	rgb(52, 62, 170)
HSL	hsl(235, 53%, 44%)
HSV	hsv(235, 69%, 67%)
CMYK	cmyk(69.4%, 63.5%, 0%, 33.3%)
CIE-LAB	lab(31.98, 32.28, -59.12)
CIE-LCH	lch(31.98, 67.35, 298.63°)
OKLab	oklab(42.66% 0.008 -0.1706)
OKLCH	oklch(42.66% 0.171 272.7)
XYZ	xyz(10.3921, 7.0766, 38.8407)
Luminance	0.0708 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.16

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343EAA #AAA034

analogous

#3479AA #343EAA #6534AA

triadic

#343EAA #AA343E #3EAA34

tetradic

#343EAA #AA3479 #AAA034 #34AA65

square

#343EAA #AA3479 #AAA034 #34AA65

split-complementary

#343EAA #AA6534 #79AA34

monochromatic

#171C4C #262D7B #343EAA #515CCA #8088D8

Accessibility & contrast

On white

8.69

#343EAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#343EAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343EAA

8.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343EAA	#FFFFFF	#000000	##FFFFFF
##343EAA	1.00	8.69	2.42	8.69
#FFFFFF	8.69	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051AD

Deuteranopia (green-blind)

#0046A8

Tritanopia (blue-blind)

#005A6E

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #343eaa;
/* rgb */ color: rgb(52, 62, 170);
/* oklch */ color: oklch(42.7% 0.171 272.7);

Tailwind

colors: {
  custom: {
    50: '#7b73c4',
    500: '#343eaa',
    950: '#000000',
  },
}

SCSS

$custom: #343eaa;
$custom-light: #7b73c4;
$custom-dark: #000000;

JSON

{
  "hex": "#343eaa",
  "rgb": {
    "r": 52,
    "g": 62,
    "b": 170
  },
  "hsl": {
    "h": 234.915,
    "s": 53.153,
    "l": 43.529
  },
  "oklch": {
    "l": 0.42658,
    "c": 0.1708,
    "h": 272.7
  },
  "luminance": 0.07078
}

Semantic roles & 50–950 ramp

primary

#343EAA

secondary

#C1BB78

accent

#D04BDD

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #343EAA

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

Preview Lab → · Contrast checker → · Palette generator →