#343CAA#343CAA

#343CAA is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.3% C 0.173 H 273.2°. Best body text is #FFFFFF at 8.85:1 contrast (WCAG AA passes).

Color values

HEX	#343CAA
RGB	rgb(52, 60, 170)
HSL	hsl(236, 53%, 44%)
HSV	hsv(236, 69%, 67%)
CMYK	cmyk(69.4%, 64.7%, 0%, 33.3%)
CIE-LAB	lab(31.49, 33.55, -59.91)
CIE-LCH	lch(31.49, 68.67, 299.25°)
OKLab	oklab(42.3% 0.0095 -0.173)
OKLCH	oklch(42.3% 0.173 273.2)
XYZ	xyz(10.2853, 6.8631, 38.8051)
Luminance	0.0686 (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

#343CAA #AAA234

analogous

#3477AA #343CAA #6734AA

triadic

#343CAA #AA343C #3CAA34

tetradic

#343CAA #AA3477 #AAA234 #34AA67

square

#343CAA #AA3477 #AAA234 #34AA67

split-complementary

#343CAA #AA6734 #77AA34

monochromatic

#171B4C #262B7B #343CAA #5159CA #8086D8

Accessibility & contrast

On white

8.85

#343CAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#343CAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343CAA

8.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343CAA	#FFFFFF	#000000	##FFFFFF
##343CAA	1.00	8.85	2.37	8.85
#FFFFFF	8.85	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050AE

Deuteranopia (green-blind)

#0045A8

Tritanopia (blue-blind)

#00586D

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #343caa;
/* rgb */ color: rgb(52, 60, 170);
/* oklch */ color: oklch(42.3% 0.173 273.2);

Tailwind

colors: {
  custom: {
    50: '#7b72c4',
    500: '#343caa',
    950: '#000000',
  },
}

SCSS

$custom: #343caa;
$custom-light: #7b72c4;
$custom-dark: #000000;

JSON

{
  "hex": "#343caa",
  "rgb": {
    "r": 52,
    "g": 60,
    "b": 170
  },
  "hsl": {
    "h": 235.932,
    "s": 53.153,
    "l": 43.529
  },
  "oklch": {
    "l": 0.423,
    "c": 0.17322,
    "h": 273.2
  },
  "luminance": 0.06864
}

Semantic roles & 50–950 ramp

primary

#343CAA

secondary

#C1BC78

accent

#D34BDD

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #343CAA

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

Preview Lab → · Contrast checker → · Palette generator →