#343BAF#343BAF

#343BAF is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.6% C 0.181 H 273.1°. Best body text is #FFFFFF at 8.78:1 contrast (WCAG AA passes).

Color values

HEX	#343BAF
RGB	rgb(52, 59, 175)
HSL	hsl(237, 54%, 45%)
HSV	hsv(237, 70%, 69%)
CMYK	cmyk(70.3%, 66.3%, 0%, 31.4%)
CIE-LAB	lab(31.70, 35.95, -62.57)
CIE-LCH	lch(31.70, 72.16, 299.88°)
OKLab	oklab(42.59% 0.0099 -0.1807)
OKLCH	oklch(42.59% 0.181 273.1)
XYZ	xyz(10.7154, 6.9521, 41.3263)
Luminance	0.0695 (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

#343BAF #AFA834

analogous

#3479AF #343BAF #6A34AF

triadic

#343BAF #AF343B #3BAF34

tetradic

#343BAF #AF3479 #AFA834 #34AF6A

square

#343BAF #AF3479 #AFA834 #34AF6A

split-complementary

#343BAF #AF6A34 #79AF34

monochromatic

#181B51 #262B80 #343BAF #545BCC #8388DA

Accessibility & contrast

On white

8.78

#343BAF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#343BAF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343BAF

8.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343BAF	#FFFFFF	#000000	##FFFFFF
##343BAF	1.00	8.78	2.39	8.78
#FFFFFF	8.78	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B3

Deuteranopia (green-blind)

#0045AD

Tritanopia (blue-blind)

#005A70

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #343baf;
/* rgb */ color: rgb(52, 59, 175);
/* oklch */ color: oklch(42.6% 0.181 273.1);

Tailwind

colors: {
  custom: {
    50: '#7c71c8',
    500: '#343baf',
    950: '#000000',
  },
}

SCSS

$custom: #343baf;
$custom-light: #7c71c8;
$custom-dark: #000000;

JSON

{
  "hex": "#343baf",
  "rgb": {
    "r": 52,
    "g": 59,
    "b": 175
  },
  "hsl": {
    "h": 236.585,
    "s": 54.185,
    "l": 44.51
  },
  "oklch": {
    "l": 0.42586,
    "c": 0.18102,
    "h": 273.1
  },
  "luminance": 0.06953
}

Semantic roles & 50–950 ramp

primary

#343BAF

secondary

#C4C07B

accent

#D54ADE

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #343BAF

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

Preview Lab → · Contrast checker → · Palette generator →