#343CAB#343CAB

#343CAB is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.4% C 0.175 H 273.1°. Best body text is #FFFFFF at 8.82:1 contrast (WCAG AA passes).

Color values

HEX	#343CAB
RGB	rgb(52, 60, 171)
HSL	hsl(236, 53%, 44%)
HSV	hsv(236, 70%, 67%)
CMYK	cmyk(69.6%, 64.9%, 0%, 32.9%)
CIE-LAB	lab(31.58, 33.91, -60.37)
CIE-LCH	lch(31.58, 69.24, 299.32°)
OKLab	oklab(42.39% 0.0095 -0.1743)
OKLCH	oklch(42.39% 0.175 273.1)
XYZ	xyz(10.3803, 6.9011, 39.3052)
Luminance	0.0690 (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

#343CAB #ABA334

analogous

#3477AB #343CAB #6734AB

triadic

#343CAB #AB343C #3CAB34

tetradic

#343CAB #AB3477 #ABA334 #34AB67

square

#343CAB #AB3477 #ABA334 #34AB67

split-complementary

#343CAB #AB6734 #77AB34

monochromatic

#171B4D #262C7C #343CAB #525ACA #8187D9

Accessibility & contrast

On white

8.82

#343CAB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#343CAB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343CAB

8.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343CAB	#FFFFFF	#000000	##FFFFFF
##343CAB	1.00	8.82	2.38	8.82
#FFFFFF	8.82	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050AF

Deuteranopia (green-blind)

#0045A9

Tritanopia (blue-blind)

#00596E

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #343cab;
/* rgb */ color: rgb(52, 60, 171);
/* oklch */ color: oklch(42.4% 0.175 273.1);

Tailwind

colors: {
  custom: {
    50: '#7b72c5',
    500: '#343cab',
    950: '#000000',
  },
}

SCSS

$custom: #343cab;
$custom-light: #7b72c5;
$custom-dark: #000000;

JSON

{
  "hex": "#343cab",
  "rgb": {
    "r": 52,
    "g": 60,
    "b": 171
  },
  "hsl": {
    "h": 235.966,
    "s": 53.363,
    "l": 43.725
  },
  "oklch": {
    "l": 0.42391,
    "c": 0.17456,
    "h": 273.1
  },
  "luminance": 0.06902
}

Semantic roles & 50–950 ramp

primary

#343CAB

secondary

#C2BD79

accent

#D34BDD

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #343CAB

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

Preview Lab → · Contrast checker → · Palette generator →