#343B84#343B84

#343B84 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.9% C 0.121 H 275.1°. Best body text is #FFFFFF at 9.98:1 contrast (WCAG AA passes).

Color values

HEX	#343B84
RGB	rgb(52, 59, 132)
HSL	hsl(235, 43%, 36%)
HSV	hsv(235, 61%, 52%)
CMYK	cmyk(60.6%, 55.3%, 0%, 48.2%)
CIE-LAB	lab(28.18, 20.59, -42.10)
CIE-LCH	lch(28.18, 46.87, 296.06°)
OKLab	oklab(38.89% 0.0108 -0.1206)
OKLCH	oklch(38.89% 0.121 275.1)
XYZ	xyz(7.1436, 5.5234, 22.5150)
Luminance	0.0552 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343B84 #847D34

analogous

#346384 #343B84 #553484

triadic

#343B84 #84343B #3B8434

tetradic

#343B84 #843463 #847D34 #348455

square

#343B84 #843463 #847D34 #348455

split-complementary

#343B84 #845534 #638434

monochromatic

#11142C #232758 #343B84 #454FB0 #6D75C5

Accessibility & contrast

On white

9.98

#343B84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#343B84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343B84

9.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343B84	#FFFFFF	#000000	##FFFFFF
##343B84	1.00	9.98	2.10	9.98
#FFFFFF	9.98	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	9.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D4687

Deuteranopia (green-blind)

#003F82

Tritanopia (blue-blind)

#004C59

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #343b84;
/* rgb */ color: rgb(52, 59, 132);
/* oklch */ color: oklch(38.9% 0.121 275.1);

Tailwind

colors: {
  custom: {
    50: '#7370a8',
    500: '#343b84',
    950: '#000000',
  },
}

SCSS

$custom: #343b84;
$custom-light: #7370a8;
$custom-dark: #000000;

JSON

{
  "hex": "#343b84",
  "rgb": {
    "r": 52,
    "g": 59,
    "b": 132
  },
  "hsl": {
    "h": 234.75,
    "s": 43.478,
    "l": 36.078
  },
  "oklch": {
    "l": 0.38886,
    "c": 0.12112,
    "h": 275.1
  },
  "luminance": 0.05524
}

Semantic roles & 50–950 ramp

primary

#343B84

secondary

#AEA766

accent

#C855D3

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #343B84

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

Preview Lab → · Contrast checker → · Palette generator →