#343699#343699

#343699 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.7% C 0.158 H 275.6°. Best body text is #FFFFFF at 9.84:1 contrast (WCAG AA passes).

Color values

HEX	#343699
RGB	rgb(52, 54, 153)
HSL	hsl(239, 49%, 40%)
HSV	hsv(239, 66%, 60%)
CMYK	cmyk(66%, 64.7%, 0%, 40%)
CIE-LAB	lab(28.56, 31.39, -54.43)
CIE-LCH	lch(28.56, 62.83, 299.97°)
OKLab	oklab(39.7% 0.0155 -0.1569)
OKLCH	oklch(39.7% 0.158 275.6)
XYZ	xyz(8.4832, 5.6676, 30.7777)
Luminance	0.0567 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343699 #999734

analogous

#346899 #343699 #653499

triadic

#343699 #993436 #369934

tetradic

#343699 #993468 #999734 #349965

square

#343699 #993468 #999734 #349965

split-complementary

#343699 #996534 #689934

monochromatic

#15163E #24266B #343699 #494BC1 #7778D1

Accessibility & contrast

On white

9.84

#343699 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#343699 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343699

9.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343699	#FFFFFF	#000000	##FFFFFF
##343699	1.00	9.84	2.13	9.84
#FFFFFF	9.84	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00489C

Deuteranopia (green-blind)

#003F97

Tritanopia (blue-blind)

#004F62

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #343699;
/* rgb */ color: rgb(52, 54, 153);
/* oklch */ color: oklch(39.7% 0.158 275.6);

Tailwind

colors: {
  custom: {
    50: '#786db8',
    500: '#343699',
    950: '#000000',
  },
}

SCSS

$custom: #343699;
$custom-light: #786db8;
$custom-dark: #000000;

JSON

{
  "hex": "#343699",
  "rgb": {
    "r": 52,
    "g": 54,
    "b": 153
  },
  "hsl": {
    "h": 238.812,
    "s": 49.268,
    "l": 40.196
  },
  "oklch": {
    "l": 0.39695,
    "c": 0.15769,
    "h": 275.6
  },
  "luminance": 0.05668
}

Semantic roles & 50–950 ramp

primary

#343699

secondary

#B9B870

accent

#D64FD9

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0711

muted

#7C7A80

Preview Lab

Preview with #343699

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

Preview Lab → · Contrast checker → · Palette generator →