#343F90#343F90

#343F90 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.6% C 0.133 H 273.1°. Best body text is #FFFFFF at 9.29:1 contrast (WCAG AA passes).

Color values

HEX	#343F90
RGB	rgb(52, 63, 144)
HSL	hsl(233, 47%, 38%)
HSV	hsv(233, 64%, 56%)
CMYK	cmyk(63.9%, 56.3%, 0%, 43.5%)
CIE-LAB	lab(30.15, 22.24, -46.33)
CIE-LCH	lch(30.15, 51.39, 295.64°)
OKLab	oklab(40.65% 0.0073 -0.133)
OKLCH	oklch(40.65% 0.133 273.1)
XYZ	xyz(8.2261, 6.2980, 27.1623)
Luminance	0.0630 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343F90 #908534

analogous

#346D90 #343F90 #573490

triadic

#343F90 #90343F #3F9034

tetradic

#343F90 #90346D #908534 #349057

square

#343F90 #90346D #908534 #349057

split-complementary

#343F90 #905734 #6D9034

monochromatic

#141836 #242B63 #343F90 #4553BC #727DCC

Accessibility & contrast

On white

9.29

#343F90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#343F90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343F90

9.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343F90	#FFFFFF	#000000	##FFFFFF
##343F90	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)

#014B93

Deuteranopia (green-blind)

#00438E

Tritanopia (blue-blind)

#005261

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #343f90;
/* rgb */ color: rgb(52, 63, 144);
/* oklch */ color: oklch(40.6% 0.133 273.1);

Tailwind

colors: {
  custom: {
    50: '#7673b1',
    500: '#343f90',
    950: '#000000',
  },
}

SCSS

$custom: #343f90;
$custom-light: #7673b1;
$custom-dark: #000000;

JSON

{
  "hex": "#343f90",
  "rgb": {
    "r": 52,
    "g": 63,
    "b": 144
  },
  "hsl": {
    "h": 232.826,
    "s": 46.939,
    "l": 38.431
  },
  "oklch": {
    "l": 0.40648,
    "c": 0.13323,
    "h": 273.1
  },
  "luminance": 0.06299
}

Semantic roles & 50–950 ramp

primary

#343F90

secondary

#B4AC6B

accent

#C751D7

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #343F90

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

Preview Lab → · Contrast checker → · Palette generator →