#343D97#343D97

#343D97 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.8% C 0.146 H 273.7°. Best body text is #FFFFFF at 9.29:1 contrast (WCAG AA passes).

Color values

HEX	#343D97
RGB	rgb(52, 61, 151)
HSL	hsl(235, 49%, 40%)
HSV	hsv(235, 66%, 59%)
CMYK	cmyk(65.6%, 59.6%, 0%, 40.8%)
CIE-LAB	lab(30.16, 26.10, -50.60)
CIE-LCH	lch(30.16, 56.94, 297.29°)
OKLab	oklab(40.82% 0.0094 -0.1456)
OKLCH	oklch(40.82% 0.146 273.7)
XYZ	xyz(8.6690, 6.3012, 30.0316)
Luminance	0.0630 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343D97 #978E34

analogous

#346F97 #343D97 #5C3497

triadic

#343D97 #97343D #3D9734

tetradic

#343D97 #97346F #978E34 #34975C

square

#343D97 #97346F #978E34 #34975C

split-complementary

#343D97 #975C34 #6F9734

monochromatic

#15183C #242B69 #343D97 #4853C0 #767ED0

Accessibility & contrast

On white

9.29

#343D97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#343D97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343D97

9.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343D97	#FFFFFF	#000000	##FFFFFF
##343D97	1.00	9.29	2.26	9.29
#FFFFFF	9.29	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004C9A

Deuteranopia (green-blind)

#004395

Tritanopia (blue-blind)

#005364

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #343d97;
/* rgb */ color: rgb(52, 61, 151);
/* oklch */ color: oklch(40.8% 0.146 273.7);

Tailwind

colors: {
  custom: {
    50: '#7772b6',
    500: '#343d97',
    950: '#000000',
  },
}

SCSS

$custom: #343d97;
$custom-light: #7772b6;
$custom-dark: #000000;

JSON

{
  "hex": "#343d97",
  "rgb": {
    "r": 52,
    "g": 61,
    "b": 151
  },
  "hsl": {
    "h": 234.545,
    "s": 48.768,
    "l": 39.804
  },
  "oklch": {
    "l": 0.40824,
    "c": 0.14592,
    "h": 273.7
  },
  "luminance": 0.06302
}

Semantic roles & 50–950 ramp

primary

#343D97

secondary

#B8B16F

accent

#CC4FD8

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0811

muted

#7C7B80

Preview Lab

Preview with #343D97

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

Preview Lab → · Contrast checker → · Palette generator →