#343DBC#343DBC

#343DBC is a dark, vivid blue. Relative luminance 0.077; OKLCH L 44.1% C 0.196 H 272.1°. Best body text is #FFFFFF at 8.27:1 contrast (WCAG AA passes).

Color values

HEX	#343DBC
RGB	rgb(52, 61, 188)
HSL	hsl(236, 57%, 47%)
HSV	hsv(236, 72%, 74%)
CMYK	cmyk(72.3%, 67.6%, 0%, 26.3%)
CIE-LAB	lab(33.34, 39.25, -67.57)
CIE-LCH	lch(33.34, 78.14, 300.15°)
OKLab	oklab(44.14% 0.0073 -0.1954)
OKLCH	oklch(44.14% 0.196 272.1)
XYZ	xyz(12.1590, 7.6972, 48.4121)
Luminance	0.0770 (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

#343DBC #BCB334

analogous

#3481BC #343DBC #6F34BC

triadic

#343DBC #BC343D #3DBC34

tetradic

#343DBC #BC3481 #BCB334 #34BC6F

square

#343DBC #BC3481 #BCB334 #34BC6F

split-complementary

#343DBC #BC6F34 #81BC34

monochromatic

#191E5C #272D8C #343DBC #5B63D2 #8B91DF

Accessibility & contrast

On white

8.27

#343DBC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#343DBC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343DBC

8.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343DBC	#FFFFFF	#000000	##FFFFFF
##343DBC	1.00	8.27	2.54	8.27
#FFFFFF	8.27	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055C0

Deuteranopia (green-blind)

#0048BA

Tritanopia (blue-blind)

#005F77

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #343dbc;
/* rgb */ color: rgb(52, 61, 188);
/* oklch */ color: oklch(44.1% 0.196 272.1);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#343dbc",
  "rgb": {
    "r": 52,
    "g": 61,
    "b": 188
  },
  "hsl": {
    "h": 236.029,
    "s": 56.667,
    "l": 47.059
  },
  "oklch": {
    "l": 0.44144,
    "c": 0.19552,
    "h": 272.1
  },
  "luminance": 0.07698
}

Semantic roles & 50–950 ramp

primary

#343DBC

secondary

#C9C583

accent

#D648E0

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #343DBC

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

Preview Lab → · Contrast checker → · Palette generator →