#343B91#343B91

#343B91 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.9% C 0.140 H 274.6°. Best body text is #FFFFFF at 9.63:1 contrast (WCAG AA passes).

Color values

HEX	#343B91
RGB	rgb(52, 59, 145)
HSL	hsl(235, 47%, 39%)
HSV	hsv(235, 64%, 57%)
CMYK	cmyk(64.1%, 59.3%, 0%, 43.1%)
CIE-LAB	lab(29.16, 25.27, -48.55)
CIE-LCH	lch(29.16, 54.73, 297.49°)
OKLab	oklab(39.93% 0.0112 -0.1396)
OKLCH	oklch(39.93% 0.14 274.6)
XYZ	xyz(8.0893, 5.9017, 27.4954)
Luminance	0.0590 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343B91 #918A34

analogous

#346991 #343B91 #5B3491

triadic

#343B91 #91343B #3B9134

tetradic

#343B91 #913469 #918A34 #34915B

square

#343B91 #913469 #918A34 #34915B

split-complementary

#343B91 #915B34 #699134

monochromatic

#141637 #242964 #343B91 #464FBD #7379CD

Accessibility & contrast

On white

9.63

#343B91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#343B91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343B91

9.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343B91	#FFFFFF	#000000	##FFFFFF
##343B91	1.00	9.63	2.18	9.63
#FFFFFF	9.63	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004994

Deuteranopia (green-blind)

#00418F

Tritanopia (blue-blind)

#005060

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #343b91;
/* rgb */ color: rgb(52, 59, 145);
/* oklch */ color: oklch(39.9% 0.140 274.6);

Tailwind

colors: {
  custom: {
    50: '#7671b2',
    500: '#343b91',
    950: '#000000',
  },
}

SCSS

$custom: #343b91;
$custom-light: #7671b2;
$custom-dark: #000000;

JSON

{
  "hex": "#343b91",
  "rgb": {
    "r": 52,
    "g": 59,
    "b": 145
  },
  "hsl": {
    "h": 235.484,
    "s": 47.208,
    "l": 38.627
  },
  "oklch": {
    "l": 0.39935,
    "c": 0.14005,
    "h": 274.6
  },
  "luminance": 0.05902
}

Semantic roles & 50–950 ramp

primary

#343B91

secondary

#B5AF6C

accent

#CD51D7

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #343B91

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

Preview Lab → · Contrast checker → · Palette generator →