#343BBD#343BBD

#343BBD is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.9% C 0.199 H 272.4°. Best body text is #FFFFFF at 8.38:1 contrast (WCAG AA passes).

Color values

HEX	#343BBD
RGB	rgb(52, 59, 189)
HSL	hsl(237, 57%, 47%)
HSV	hsv(237, 72%, 74%)
CMYK	cmyk(72.5%, 68.8%, 0%, 25.9%)
CIE-LAB	lab(32.99, 40.81, -68.75)
CIE-LCH	lch(32.99, 79.95, 300.69°)
OKLab	oklab(43.91% 0.0084 -0.1988)
OKLCH	oklch(43.91% 0.199 272.4)
XYZ	xyz(12.1624, 7.5309, 48.9469)
Luminance	0.0753 (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

#343BBD #BDB634

analogous

#3480BD #343BBD #7134BD

triadic

#343BBD #BD343B #3BBD34

tetradic

#343BBD #BD3480 #BDB634 #34BD71

square

#343BBD #BD3480 #BDB634 #34BD71

split-complementary

#343BBD #BD7134 #80BD34

monochromatic

#1A1D5D #272C8D #343BBD #5C62D2 #8C90DF

Accessibility & contrast

On white

8.38

#343BBD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#343BBD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343BBD

8.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343BBD	#FFFFFF	#000000	##FFFFFF
##343BBD	1.00	8.38	2.51	8.38
#FFFFFF	8.38	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054C1

Deuteranopia (green-blind)

#0047BB

Tritanopia (blue-blind)

#005E77

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #343bbd;
/* rgb */ color: rgb(52, 59, 189);
/* oklch */ color: oklch(43.9% 0.199 272.4);

Tailwind

colors: {
  custom: {
    50: '#8071d2',
    500: '#343bbd',
    950: '#000000',
  },
}

SCSS

$custom: #343bbd;
$custom-light: #8071d2;
$custom-dark: #000000;

JSON

{
  "hex": "#343bbd",
  "rgb": {
    "r": 52,
    "g": 59,
    "b": 189
  },
  "hsl": {
    "h": 236.934,
    "s": 56.846,
    "l": 47.255
  },
  "oklch": {
    "l": 0.43914,
    "c": 0.199,
    "h": 272.4
  },
  "luminance": 0.07532
}

Semantic roles & 50–950 ramp

primary

#343BBD

secondary

#CAC683

accent

#D848E0

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #343BBD

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

Preview Lab → · Contrast checker → · Palette generator →