#343DBF#343DBF

#343DBF is a dark, vivid blue. Relative luminance 0.078; OKLCH L 44.4% C 0.199 H 272.0°. Best body text is #FFFFFF at 8.18:1 contrast (WCAG AA passes).

Color values

HEX	#343DBF
RGB	rgb(52, 61, 191)
HSL	hsl(236, 57%, 48%)
HSV	hsv(236, 73%, 75%)
CMYK	cmyk(72.8%, 68.1%, 0%, 25.1%)
CIE-LAB	lab(33.62, 40.28, -68.88)
CIE-LCH	lch(33.62, 79.80, 300.32°)
OKLab	oklab(44.43% 0.007 -0.1992)
OKLCH	oklch(44.43% 0.199 272)
XYZ	xyz(12.4857, 7.8279, 50.1330)
Luminance	0.0783 (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

#343DBF #BFB634

analogous

#3483BF #343DBF #7034BF

triadic

#343DBF #BF343D #3DBF34

tetradic

#343DBF #BF3483 #BFB634 #34BF70

square

#343DBF #BF3483 #BFB634 #34BF70

split-complementary

#343DBF #BF7034 #83BF34

monochromatic

#1A1E5F #272E8F #343DBF #5D65D3 #8D93E0

Accessibility & contrast

On white

8.18

#343DBF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#343DBF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343DBF

8.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343DBF	#FFFFFF	#000000	##FFFFFF
##343DBF	1.00	8.18	2.57	8.18
#FFFFFF	8.18	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C3

Deuteranopia (green-blind)

#0048BD

Tritanopia (blue-blind)

#006079

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #343dbf;
/* rgb */ color: rgb(52, 61, 191);
/* oklch */ color: oklch(44.4% 0.199 272.0);

Tailwind

colors: {
  custom: {
    50: '#8073d3',
    500: '#343dbf',
    950: '#000000',
  },
}

SCSS

$custom: #343dbf;
$custom-light: #8073d3;
$custom-dark: #000000;

JSON

{
  "hex": "#343dbf",
  "rgb": {
    "r": 52,
    "g": 61,
    "b": 191
  },
  "hsl": {
    "h": 236.115,
    "s": 57.202,
    "l": 47.647
  },
  "oklch": {
    "l": 0.4443,
    "c": 0.19933,
    "h": 272
  },
  "luminance": 0.07829
}

Semantic roles & 50–950 ramp

primary

#343DBF

secondary

#CAC684

accent

#D747E0

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #343DBF

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

Preview Lab → · Contrast checker → · Palette generator →