#343DBB#343DBB

#343DBB is a dark, vivid blue. Relative luminance 0.077; OKLCH L 44.0% C 0.194 H 272.2°. Best body text is #FFFFFF at 8.30:1 contrast (WCAG AA passes).

Color values

HEX	#343DBB
RGB	rgb(52, 61, 187)
HSL	hsl(236, 56%, 47%)
HSV	hsv(236, 72%, 73%)
CMYK	cmyk(72.2%, 67.4%, 0%, 26.7%)
CIE-LAB	lab(33.25, 38.90, -67.13)
CIE-LCH	lch(33.25, 77.59, 300.09°)
OKLab	oklab(44.05% 0.0074 -0.1941)
OKLCH	oklch(44.05% 0.194 272.2)
XYZ	xyz(12.0515, 7.6542, 47.8463)
Luminance	0.0766 (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

#343DBB #BBB234

analogous

#3481BB #343DBB #6F34BB

triadic

#343DBB #BB343D #3DBB34

tetradic

#343DBB #BB3481 #BBB234 #34BB6F

square

#343DBB #BB3481 #BBB234 #34BB6F

split-complementary

#343DBB #BB6F34 #81BB34

monochromatic

#191E5B #272D8B #343DBB #5B63D1 #8B90DF

Accessibility & contrast

On white

8.30

#343DBB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#343DBB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343DBB

8.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343DBB	#FFFFFF	#000000	##FFFFFF
##343DBB	1.00	8.30	2.53	8.30
#FFFFFF	8.30	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055BF

Deuteranopia (green-blind)

#0048B9

Tritanopia (blue-blind)

#005F77

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #343dbb;
/* rgb */ color: rgb(52, 61, 187);
/* oklch */ color: oklch(44.0% 0.194 272.2);

Tailwind

colors: {
  custom: {
    50: '#7f73d1',
    500: '#343dbb',
    950: '#000000',
  },
}

SCSS

$custom: #343dbb;
$custom-light: #7f73d1;
$custom-dark: #000000;

JSON

{
  "hex": "#343dbb",
  "rgb": {
    "r": 52,
    "g": 61,
    "b": 187
  },
  "hsl": {
    "h": 236,
    "s": 56.485,
    "l": 46.863
  },
  "oklch": {
    "l": 0.4405,
    "c": 0.19424,
    "h": 272.2
  },
  "luminance": 0.07655
}

Semantic roles & 50–950 ramp

primary

#343DBB

secondary

#C9C482

accent

#D648E0

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #343DBB

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

Preview Lab → · Contrast checker → · Palette generator →