#343DC3#343DC3

#343DC3 is a dark, highly saturated blue. Relative luminance 0.080; OKLCH L 44.8% C 0.204 H 271.8°. Best body text is #FFFFFF at 8.07:1 contrast (WCAG AA passes).

Color values

HEX	#343DC3
RGB	rgb(52, 61, 195)
HSL	hsl(236, 58%, 48%)
HSV	hsv(236, 73%, 76%)
CMYK	cmyk(73.3%, 68.7%, 0%, 23.5%)
CIE-LAB	lab(34.00, 41.66, -70.61)
CIE-LCH	lch(34.00, 81.99, 300.54°)
OKLab	oklab(44.82% 0.0066 -0.2043)
OKLCH	oklch(44.82% 0.204 271.8)
XYZ	xyz(12.9319, 8.0063, 52.4830)
Luminance	0.0801 (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

#343DC3 #C3BA34

analogous

#3484C3 #343DC3 #7234C3

triadic

#343DC3 #C3343D #3DC334

tetradic

#343DC3 #C33484 #C3BA34 #34C372

square

#343DC3 #C33484 #C3BA34 #34C372

split-complementary

#343DC3 #C37234 #84C334

monochromatic

#1A1F62 #272E93 #343DC3 #6067D5 #9095E1

Accessibility & contrast

On white

8.07

#343DC3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#343DC3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343DC3

8.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343DC3	#FFFFFF	#000000	##FFFFFF
##343DC3	1.00	8.07	2.60	8.07
#FFFFFF	8.07	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057C7

Deuteranopia (green-blind)

#0049C1

Tritanopia (blue-blind)

#00627B

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #343dc3;
/* rgb */ color: rgb(52, 61, 195);
/* oklch */ color: oklch(44.8% 0.204 271.8);

Tailwind

colors: {
  custom: {
    50: '#8173d6',
    500: '#343dc3',
    950: '#000000',
  },
}

SCSS

$custom: #343dc3;
$custom-light: #8173d6;
$custom-dark: #000000;

JSON

{
  "hex": "#343dc3",
  "rgb": {
    "r": 52,
    "g": 61,
    "b": 195
  },
  "hsl": {
    "h": 236.224,
    "s": 57.895,
    "l": 48.431
  },
  "oklch": {
    "l": 0.44815,
    "c": 0.20437,
    "h": 271.8
  },
  "luminance": 0.08008
}

Semantic roles & 50–950 ramp

primary

#343DC3

secondary

#CCC887

accent

#D747E1

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #343DC3

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

Preview Lab → · Contrast checker → · Palette generator →