#343DB2#343DB2

#343DB2 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.2% C 0.183 H 272.6°. Best body text is #FFFFFF at 8.55:1 contrast (WCAG AA passes).

Color values

HEX	#343DB2
RGB	rgb(52, 61, 178)
HSL	hsl(236, 55%, 45%)
HSV	hsv(236, 71%, 70%)
CMYK	cmyk(70.8%, 65.7%, 0%, 30.2%)
CIE-LAB	lab(32.44, 35.75, -63.14)
CIE-LCH	lch(32.44, 72.56, 299.52°)
OKLab	oklab(43.21% 0.0082 -0.1824)
OKLCH	oklch(43.21% 0.183 272.6)
XYZ	xyz(11.1181, 7.2808, 42.9303)
Luminance	0.0728 (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

#343DB2 #B2A934

analogous

#347CB2 #343DB2 #6A34B2

triadic

#343DB2 #B2343D #3DB234

tetradic

#343DB2 #B2347C #B2A934 #34B26A

square

#343DB2 #B2347C #B2A934 #34B26A

split-complementary

#343DB2 #B26A34 #7CB234

monochromatic

#181D53 #262D83 #343DB2 #565ECE #858BDB

Accessibility & contrast

On white

8.55

#343DB2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#343DB2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343DB2

8.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343DB2	#FFFFFF	#000000	##FFFFFF
##343DB2	1.00	8.55	2.46	8.55
#FFFFFF	8.55	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052B6

Deuteranopia (green-blind)

#0046B0

Tritanopia (blue-blind)

#005C72

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #343db2;
/* rgb */ color: rgb(52, 61, 178);
/* oklch */ color: oklch(43.2% 0.183 272.6);

Tailwind

colors: {
  custom: {
    50: '#7d73ca',
    500: '#343db2',
    950: '#000000',
  },
}

SCSS

$custom: #343db2;
$custom-light: #7d73ca;
$custom-dark: #000000;

JSON

{
  "hex": "#343db2",
  "rgb": {
    "r": 52,
    "g": 61,
    "b": 178
  },
  "hsl": {
    "h": 235.714,
    "s": 54.783,
    "l": 45.098
  },
  "oklch": {
    "l": 0.43208,
    "c": 0.1826,
    "h": 272.6
  },
  "luminance": 0.07282
}

Semantic roles & 50–950 ramp

primary

#343DB2

secondary

#C5C07D

accent

#D44ADE

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #343DB2

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

Preview Lab → · Contrast checker → · Palette generator →