#343AAF#343AAF

#343AAF is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.4% C 0.182 H 273.3°. Best body text is #FFFFFF at 8.86:1 contrast (WCAG AA passes).

Color values

HEX	#343AAF
RGB	rgb(52, 58, 175)
HSL	hsl(237, 54%, 45%)
HSV	hsv(237, 70%, 69%)
CMYK	cmyk(70.3%, 66.9%, 0%, 31.4%)
CIE-LAB	lab(31.46, 36.57, -62.95)
CIE-LCH	lch(31.46, 72.81, 300.16°)
OKLab	oklab(42.42% 0.0105 -0.1819)
OKLCH	oklch(42.42% 0.182 273.3)
XYZ	xyz(10.6645, 6.8503, 41.3093)
Luminance	0.0685 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343AAF #AFA934

analogous

#3478AF #343AAF #6C34AF

triadic

#343AAF #AF343A #3AAF34

tetradic

#343AAF #AF3478 #AFA934 #34AF6C

square

#343AAF #AF3478 #AFA934 #34AF6C

split-complementary

#343AAF #AF6C34 #78AF34

monochromatic

#181B51 #262A80 #343AAF #545ACC #8387DA

Accessibility & contrast

On white

8.86

#343AAF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#343AAF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343AAF

8.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343AAF	#FFFFFF	#000000	##FFFFFF
##343AAF	1.00	8.86	2.37	8.86
#FFFFFF	8.86	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B3

Deuteranopia (green-blind)

#0044AD

Tritanopia (blue-blind)

#00596F

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #343aaf;
/* rgb */ color: rgb(52, 58, 175);
/* oklch */ color: oklch(42.4% 0.182 273.3);

Tailwind

colors: {
  custom: {
    50: '#7d70c8',
    500: '#343aaf',
    950: '#000000',
  },
}

SCSS

$custom: #343aaf;
$custom-light: #7d70c8;
$custom-dark: #000000;

JSON

{
  "hex": "#343aaf",
  "rgb": {
    "r": 52,
    "g": 58,
    "b": 175
  },
  "hsl": {
    "h": 237.073,
    "s": 54.185,
    "l": 44.51
  },
  "oklch": {
    "l": 0.42416,
    "c": 0.18218,
    "h": 273.3
  },
  "luminance": 0.06851
}

Semantic roles & 50–950 ramp

primary

#343AAF

secondary

#C4C07B

accent

#D64ADE

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #343AAF

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

Preview Lab → · Contrast checker → · Palette generator →