#343C85#343C85

#343C85 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.2% C 0.121 H 274.6°. Best body text is #FFFFFF at 9.85:1 contrast (WCAG AA passes).

Color values

HEX	#343C85
RGB	rgb(52, 60, 133)
HSL	hsl(234, 44%, 36%)
HSV	hsv(234, 61%, 52%)
CMYK	cmyk(60.9%, 54.9%, 0%, 47.8%)
CIE-LAB	lab(28.52, 20.27, -42.16)
CIE-LCH	lch(28.52, 46.78, 295.68°)
OKLab	oklab(39.17% 0.0098 -0.1208)
OKLCH	oklch(39.17% 0.121 274.6)
XYZ	xyz(7.2643, 5.6547, 22.8944)
Luminance	0.0566 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343C85 #857D34

analogous

#346585 #343C85 #553485

triadic

#343C85 #85343C #3C8534

tetradic

#343C85 #853465 #857D34 #348555

square

#343C85 #853465 #857D34 #348555

split-complementary

#343C85 #855534 #658534

monochromatic

#12142D #232859 #343C85 #4550B1 #6D76C6

Accessibility & contrast

On white

9.85

#343C85 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#343C85 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343C85

9.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343C85	#FFFFFF	#000000	##FFFFFF
##343C85	1.00	9.85	2.13	9.85
#FFFFFF	9.85	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F4788

Deuteranopia (green-blind)

#004083

Tritanopia (blue-blind)

#004D5A

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #343c85;
/* rgb */ color: rgb(52, 60, 133);
/* oklch */ color: oklch(39.2% 0.121 274.6);

Tailwind

colors: {
  custom: {
    50: '#7471a9',
    500: '#343c85',
    950: '#000000',
  },
}

SCSS

$custom: #343c85;
$custom-light: #7471a9;
$custom-dark: #000000;

JSON

{
  "hex": "#343c85",
  "rgb": {
    "r": 52,
    "g": 60,
    "b": 133
  },
  "hsl": {
    "h": 234.074,
    "s": 43.784,
    "l": 36.275
  },
  "oklch": {
    "l": 0.3917,
    "c": 0.1212,
    "h": 274.6
  },
  "luminance": 0.05655
}

Semantic roles & 50–950 ramp

primary

#343C85

secondary

#AEA767

accent

#C754D4

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #343C85

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

Preview Lab → · Contrast checker → · Palette generator →