#343FBD#343FBD

#343FBD is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.6% C 0.195 H 271.8°. Best body text is #FFFFFF at 8.10:1 contrast (WCAG AA passes).

Color values

HEX	#343FBD
RGB	rgb(52, 63, 189)
HSL	hsl(235, 57%, 47%)
HSV	hsv(235, 72%, 74%)
CMYK	cmyk(72.5%, 66.7%, 0%, 25.9%)
CIE-LAB	lab(33.90, 38.36, -67.26)
CIE-LCH	lch(33.90, 77.43, 299.70°)
OKLab	oklab(44.57% 0.006 -0.1945)
OKLCH	oklch(44.57% 0.195 271.8)
XYZ	xyz(12.3759, 7.9579, 49.0181)
Luminance	0.0796 (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

#343FBD #BDB234

analogous

#3484BD #343FBD #6D34BD

triadic

#343FBD #BD343F #3FBD34

tetradic

#343FBD #BD3484 #BDB234 #34BD6D

square

#343FBD #BD3484 #BDB234 #34BD6D

split-complementary

#343FBD #BD6D34 #84BD34

monochromatic

#1A1F5D #272F8D #343FBD #5C66D2 #8C93DF

Accessibility & contrast

On white

8.10

#343FBD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#343FBD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343FBD

8.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343FBD	#FFFFFF	#000000	##FFFFFF
##343FBD	1.00	8.10	2.59	8.10
#FFFFFF	8.10	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C1

Deuteranopia (green-blind)

#0049BB

Tritanopia (blue-blind)

#006178

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #343fbd;
/* rgb */ color: rgb(52, 63, 189);
/* oklch */ color: oklch(44.6% 0.195 271.8);

Tailwind

colors: {
  custom: {
    50: '#7f74d2',
    500: '#343fbd',
    950: '#000000',
  },
}

SCSS

$custom: #343fbd;
$custom-light: #7f74d2;
$custom-dark: #000000;

JSON

{
  "hex": "#343fbd",
  "rgb": {
    "r": 52,
    "g": 63,
    "b": 189
  },
  "hsl": {
    "h": 235.182,
    "s": 56.846,
    "l": 47.255
  },
  "oklch": {
    "l": 0.44573,
    "c": 0.19454,
    "h": 271.8
  },
  "luminance": 0.07959
}

Semantic roles & 50–950 ramp

primary

#343FBD

secondary

#CAC483

accent

#D448E0

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #343FBD

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

Preview Lab → · Contrast checker → · Palette generator →