#343C90#343C90

#343C90 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.0% C 0.137 H 274.3°. Best body text is #FFFFFF at 9.57:1 contrast (WCAG AA passes).

Color values

HEX	#343C90
RGB	rgb(52, 60, 144)
HSL	hsl(235, 47%, 38%)
HSV	hsv(235, 64%, 56%)
CMYK	cmyk(63.9%, 58.3%, 0%, 43.5%)
CIE-LAB	lab(29.35, 24.24, -47.63)
CIE-LCH	lch(29.35, 53.45, 296.97°)
OKLab	oklab(40.05% 0.0103 -0.1369)
OKLCH	oklch(40.05% 0.137 274.3)
XYZ	xyz(8.0644, 5.9747, 27.1084)
Luminance	0.0597 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343C90 #908834

analogous

#346A90 #343C90 #5A3490

triadic

#343C90 #90343C #3C9034

tetradic

#343C90 #90346A #908834 #34905A

square

#343C90 #90346A #908834 #34905A

split-complementary

#343C90 #905A34 #6A9034

monochromatic

#141736 #242963 #343C90 #4550BC #727ACC

Accessibility & contrast

On white

9.57

#343C90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#343C90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343C90

9.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343C90	#FFFFFF	#000000	##FFFFFF
##343C90	1.00	9.57	2.19	9.57
#FFFFFF	9.57	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004993

Deuteranopia (green-blind)

#00418E

Tritanopia (blue-blind)

#005060

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #343c90;
/* rgb */ color: rgb(52, 60, 144);
/* oklch */ color: oklch(40.0% 0.137 274.3);

Tailwind

colors: {
  custom: {
    50: '#7671b1',
    500: '#343c90',
    950: '#000000',
  },
}

SCSS

$custom: #343c90;
$custom-light: #7671b1;
$custom-dark: #000000;

JSON

{
  "hex": "#343c90",
  "rgb": {
    "r": 52,
    "g": 60,
    "b": 144
  },
  "hsl": {
    "h": 234.783,
    "s": 46.939,
    "l": 38.431
  },
  "oklch": {
    "l": 0.40048,
    "c": 0.13727,
    "h": 274.3
  },
  "luminance": 0.05975
}

Semantic roles & 50–950 ramp

primary

#343C90

secondary

#B4AE6B

accent

#CB51D7

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #343C90

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

Preview Lab → · Contrast checker → · Palette generator →