#343399#343399

#343399 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.2% C 0.161 H 276.4°. Best body text is #FFFFFF at 10.10:1 contrast (WCAG AA passes).

Color values

HEX	#343399
RGB	rgb(52, 51, 153)
HSL	hsl(241, 50%, 40%)
HSV	hsv(241, 67%, 60%)
CMYK	cmyk(66%, 66.7%, 0%, 40%)
CIE-LAB	lab(27.84, 33.30, -55.61)
CIE-LCH	lch(27.84, 64.82, 300.91°)
OKLab	oklab(39.17% 0.0179 -0.1604)
OKLCH	oklch(39.17% 0.161 276.4)
XYZ	xyz(8.3479, 5.3969, 30.7326)
Luminance	0.0540 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343399 #989933

analogous

#336599 #343399 #673399

triadic

#343399 #993433 #339934

tetradic

#343399 #993365 #989933 #339967

square

#343399 #993365 #989933 #339967

split-complementary

#343399 #996733 #659933

monochromatic

#15143D #24246B #343399 #4947C2 #7675D1

Accessibility & contrast

On white

10.10

#343399 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#343399 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343399

10.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343399	#FFFFFF	#000000	##FFFFFF
##343399	1.00	10.10	2.08	10.10
#FFFFFF	10.10	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00469C

Deuteranopia (green-blind)

#003D97

Tritanopia (blue-blind)

#004D61

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #343399;
/* rgb */ color: rgb(52, 51, 153);
/* oklch */ color: oklch(39.2% 0.161 276.4);

Tailwind

colors: {
  custom: {
    50: '#786bb8',
    500: '#343399',
    950: '#000000',
  },
}

SCSS

$custom: #343399;
$custom-light: #786bb8;
$custom-dark: #000000;

JSON

{
  "hex": "#343399",
  "rgb": {
    "r": 52,
    "g": 51,
    "b": 153
  },
  "hsl": {
    "h": 240.588,
    "s": 50,
    "l": 40
  },
  "oklch": {
    "l": 0.39169,
    "c": 0.1614,
    "h": 276.4
  },
  "luminance": 0.05398
}

Semantic roles & 50–950 ramp

primary

#343399

secondary

#B9B96E

accent

#DA4ED8

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0611

muted

#7C7A80

Preview Lab

Preview with #343399

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

Preview Lab → · Contrast checker → · Palette generator →