#343DA0#343DA0

#343DA0 is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.6% C 0.158 H 273.3°. Best body text is #FFFFFF at 9.05:1 contrast (WCAG AA passes).

Color values

HEX	#343DA0
RGB	rgb(52, 61, 160)
HSL	hsl(235, 51%, 42%)
HSV	hsv(235, 68%, 63%)
CMYK	cmyk(67.5%, 61.9%, 0%, 37.3%)
CIE-LAB	lab(30.89, 29.34, -54.88)
CIE-LCH	lch(30.89, 62.23, 298.13°)
OKLab	oklab(41.59% 0.0092 -0.1582)
OKLCH	oklch(41.59% 0.158 273.3)
XYZ	xyz(9.4280, 6.6048, 34.0289)
Luminance	0.0661 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343DA0 #A09734

analogous

#3473A0 #343DA0 #6134A0

triadic

#343DA0 #A0343D #3DA034

tetradic

#343DA0 #A03473 #A09734 #34A061

square

#343DA0 #A03473 #A09734 #34A061

split-complementary

#343DA0 #A06134 #73A034

monochromatic

#161A44 #252B72 #343DA0 #4C56C5 #7A82D4

Accessibility & contrast

On white

9.05

#343DA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#343DA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343DA0

9.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343DA0	#FFFFFF	#000000	##FFFFFF
##343DA0	1.00	9.05	2.32	9.05
#FFFFFF	9.05	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA3

Deuteranopia (green-blind)

#00449E

Tritanopia (blue-blind)

#005668

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #343da0;
/* rgb */ color: rgb(52, 61, 160);
/* oklch */ color: oklch(41.6% 0.158 273.3);

Tailwind

colors: {
  custom: {
    50: '#7972bd',
    500: '#343da0',
    950: '#000000',
  },
}

SCSS

$custom: #343da0;
$custom-light: #7972bd;
$custom-dark: #000000;

JSON

{
  "hex": "#343da0",
  "rgb": {
    "r": 52,
    "g": 61,
    "b": 160
  },
  "hsl": {
    "h": 235,
    "s": 50.943,
    "l": 41.569
  },
  "oklch": {
    "l": 0.41593,
    "c": 0.15846,
    "h": 273.3
  },
  "luminance": 0.06606
}

Semantic roles & 50–950 ramp

primary

#343DA0

secondary

#BDB773

accent

#CF4DDA

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #343DA0

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

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