#343C84#343C84

#343C84 is a dark, moderate blue. Relative luminance 0.056; OKLCH L 39.1% C 0.120 H 274.7°. Best body text is #FFFFFF at 9.88:1 contrast (WCAG AA passes).

Color values

HEX	#343C84
RGB	rgb(52, 60, 132)
HSL	hsl(234, 43%, 36%)
HSV	hsv(234, 61%, 52%)
CMYK	cmyk(60.6%, 54.5%, 0%, 48.2%)
CIE-LAB	lab(28.45, 19.91, -41.66)
CIE-LCH	lch(28.45, 46.17, 295.55°)
OKLab	oklab(39.09% 0.0098 -0.1193)
OKLCH	oklch(39.09% 0.12 274.7)
XYZ	xyz(7.1955, 5.6272, 22.5323)
Luminance	0.0563 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343C84 #847C34

analogous

#346484 #343C84 #543484

triadic

#343C84 #84343C #3C8434

tetradic

#343C84 #843464 #847C34 #348454

square

#343C84 #843464 #847C34 #348454

split-complementary

#343C84 #845434 #648434

monochromatic

#11142C #232858 #343C84 #4550B0 #6D76C5

Accessibility & contrast

On white

9.88

#343C84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#343C84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343C84

9.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343C84	#FFFFFF	#000000	##FFFFFF
##343C84	1.00	9.88	2.13	9.88
#FFFFFF	9.88	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#114787

Deuteranopia (green-blind)

#004083

Tritanopia (blue-blind)

#004D5A

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #343c84;
/* rgb */ color: rgb(52, 60, 132);
/* oklch */ color: oklch(39.1% 0.120 274.7);

Tailwind

colors: {
  custom: {
    50: '#7371a8',
    500: '#343c84',
    950: '#000000',
  },
}

SCSS

$custom: #343c84;
$custom-light: #7371a8;
$custom-dark: #000000;

JSON

{
  "hex": "#343c84",
  "rgb": {
    "r": 52,
    "g": 60,
    "b": 132
  },
  "hsl": {
    "h": 234,
    "s": 43.478,
    "l": 36.078
  },
  "oklch": {
    "l": 0.39093,
    "c": 0.11972,
    "h": 274.7
  },
  "luminance": 0.05628
}

Semantic roles & 50–950 ramp

primary

#343C84

secondary

#AEA666

accent

#C755D3

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #343C84

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

Preview Lab → · Contrast checker → · Palette generator →