#343BC1#343BC1

#343BC1 is a dark, highly saturated blue. Relative luminance 0.077; OKLCH L 44.3% C 0.204 H 272.2°. Best body text is #FFFFFF at 8.26:1 contrast (WCAG AA passes).

Color values

HEX	#343BC1
RGB	rgb(52, 59, 193)
HSL	hsl(237, 58%, 48%)
HSV	hsv(237, 73%, 76%)
CMYK	cmyk(73.1%, 69.4%, 0%, 24.3%)
CIE-LAB	lab(33.37, 42.18, -70.48)
CIE-LCH	lch(33.37, 82.14, 300.90°)
OKLab	oklab(44.3% 0.0079 -0.2039)
OKLCH	oklch(44.3% 0.204 272.2)
XYZ	xyz(12.6025, 7.7070, 51.2652)
Luminance	0.0771 (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

#343BC1 #C1BA34

analogous

#3482C1 #343BC1 #7334C1

triadic

#343BC1 #C1343B #3BC134

tetradic

#343BC1 #C13482 #C1BA34 #34C173

square

#343BC1 #C13482 #C1BA34 #34C173

split-complementary

#343BC1 #C17334 #82C134

monochromatic

#1A1E61 #272C91 #343BC1 #5E64D4 #8F93E1

Accessibility & contrast

On white

8.26

#343BC1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#343BC1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343BC1

8.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343BC1	#FFFFFF	#000000	##FFFFFF
##343BC1	1.00	8.26	2.54	8.26
#FFFFFF	8.26	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055C5

Deuteranopia (green-blind)

#0048BF

Tritanopia (blue-blind)

#006079

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #343bc1;
/* rgb */ color: rgb(52, 59, 193);
/* oklch */ color: oklch(44.3% 0.204 272.2);

Tailwind

colors: {
  custom: {
    50: '#8172d5',
    500: '#343bc1',
    950: '#000000',
  },
}

SCSS

$custom: #343bc1;
$custom-light: #8172d5;
$custom-dark: #000000;

JSON

{
  "hex": "#343bc1",
  "rgb": {
    "r": 52,
    "g": 59,
    "b": 193
  },
  "hsl": {
    "h": 237.021,
    "s": 57.551,
    "l": 48.039
  },
  "oklch": {
    "l": 0.44302,
    "c": 0.20402,
    "h": 272.2
  },
  "luminance": 0.07708
}

Semantic roles & 50–950 ramp

primary

#343BC1

secondary

#CBC886

accent

#D947E1

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #343BC1

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

Preview Lab → · Contrast checker → · Palette generator →