#343CB7#343CB7

#343CB7 is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.5% C 0.190 H 272.5°. Best body text is #FFFFFF at 8.48:1 contrast (WCAG AA passes).

Color values

HEX	#343CB7
RGB	rgb(52, 60, 183)
HSL	hsl(236, 56%, 46%)
HSV	hsv(236, 72%, 72%)
CMYK	cmyk(71.6%, 67.2%, 0%, 28.2%)
CIE-LAB	lab(32.66, 38.12, -65.75)
CIE-LCH	lch(32.66, 76.00, 300.11°)
OKLab	oklab(43.51% 0.0084 -0.19)
OKLCH	oklch(43.51% 0.19 272.5)
XYZ	xyz(11.5764, 7.3795, 45.6049)
Luminance	0.0738 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343CB7 #B7AF34

analogous

#347DB7 #343CB7 #6D34B7

triadic

#343CB7 #B7343C #3CB734

tetradic

#343CB7 #B7347D #B7AF34 #34B76D

square

#343CB7 #B7347D #B7AF34 #34B76D

split-complementary

#343CB7 #B76D34 #7DB734

monochromatic

#191D58 #262C87 #343CB7 #5960D0 #888DDD

Accessibility & contrast

On white

8.48

#343CB7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#343CB7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343CB7

8.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343CB7	#FFFFFF	#000000	##FFFFFF
##343CB7	1.00	8.48	2.48	8.48
#FFFFFF	8.48	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053BB

Deuteranopia (green-blind)

#0047B5

Tritanopia (blue-blind)

#005D74

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #343cb7;
/* rgb */ color: rgb(52, 60, 183);
/* oklch */ color: oklch(43.5% 0.190 272.5);

Tailwind

colors: {
  custom: {
    50: '#7e72ce',
    500: '#343cb7',
    950: '#000000',
  },
}

SCSS

$custom: #343cb7;
$custom-light: #7e72ce;
$custom-dark: #000000;

JSON

{
  "hex": "#343cb7",
  "rgb": {
    "r": 52,
    "g": 60,
    "b": 183
  },
  "hsl": {
    "h": 236.336,
    "s": 55.745,
    "l": 46.078
  },
  "oklch": {
    "l": 0.43505,
    "c": 0.19024,
    "h": 272.5
  },
  "luminance": 0.07381
}

Semantic roles & 50–950 ramp

primary

#343CB7

secondary

#C7C380

accent

#D649DF

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #343CB7

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

Preview Lab → · Contrast checker → · Palette generator →