#343D91#343D91

#343D91 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.3% C 0.137 H 273.9°. Best body text is #FFFFFF at 9.45:1 contrast (WCAG AA passes).

Color values

HEX	#343D91
RGB	rgb(52, 61, 145)
HSL	hsl(234, 47%, 39%)
HSV	hsv(234, 64%, 57%)
CMYK	cmyk(64.1%, 57.9%, 0%, 43.1%)
CIE-LAB	lab(29.69, 23.94, -47.69)
CIE-LCH	lch(29.69, 53.36, 296.65°)
OKLab	oklab(40.33% 0.0093 -0.137)
OKLCH	oklch(40.33% 0.137 273.9)
XYZ	xyz(8.1941, 6.1112, 27.5303)
Luminance	0.0611 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343D91 #918834

analogous

#346B91 #343D91 #593491

triadic

#343D91 #91343D #3D9134

tetradic

#343D91 #91346B #918834 #349159

square

#343D91 #91346B #918834 #349159

split-complementary

#343D91 #915934 #6B9134

monochromatic

#141737 #242A64 #343D91 #4651BD #737BCD

Accessibility & contrast

On white

9.45

#343D91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#343D91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343D91

9.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343D91	#FFFFFF	#000000	##FFFFFF
##343D91	1.00	9.45	2.22	9.45
#FFFFFF	9.45	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A94

Deuteranopia (green-blind)

#00428F

Tritanopia (blue-blind)

#005161

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #343d91;
/* rgb */ color: rgb(52, 61, 145);
/* oklch */ color: oklch(40.3% 0.137 273.9);

Tailwind

colors: {
  custom: {
    50: '#7672b2',
    500: '#343d91',
    950: '#000000',
  },
}

SCSS

$custom: #343d91;
$custom-light: #7672b2;
$custom-dark: #000000;

JSON

{
  "hex": "#343d91",
  "rgb": {
    "r": 52,
    "g": 61,
    "b": 145
  },
  "hsl": {
    "h": 234.194,
    "s": 47.208,
    "l": 38.627
  },
  "oklch": {
    "l": 0.40328,
    "c": 0.13737,
    "h": 273.9
  },
  "luminance": 0.06112
}

Semantic roles & 50–950 ramp

primary

#343D91

secondary

#B5AE6C

accent

#CA51D7

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #343D91

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

Preview Lab → · Contrast checker → · Palette generator →