#343AAA#343AAA

#343AAA is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.9% C 0.176 H 273.6°. Best body text is #FFFFFF at 9.01:1 contrast (WCAG AA passes).

Color values

HEX	#343AAA
RGB	rgb(52, 58, 170)
HSL	hsl(237, 53%, 44%)
HSV	hsv(237, 69%, 67%)
CMYK	cmyk(69.4%, 65.9%, 0%, 33.3%)
CIE-LAB	lab(31.01, 34.82, -60.70)
CIE-LCH	lch(31.01, 69.98, 299.84°)
OKLab	oklab(41.95% 0.011 -0.1753)
OKLCH	oklch(41.95% 0.176 273.6)
XYZ	xyz(10.1825, 6.6575, 38.7708)
Luminance	0.0666 (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

#343AAA #AAA434

analogous

#3475AA #343AAA #6934AA

triadic

#343AAA #AA343A #3AAA34

tetradic

#343AAA #AA3475 #AAA434 #34AA69

square

#343AAA #AA3475 #AAA434 #34AA69

split-complementary

#343AAA #AA6934 #75AA34

monochromatic

#171A4C #262A7B #343AAA #5157CA #8085D8

Accessibility & contrast

On white

9.01

#343AAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#343AAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343AAA

9.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343AAA	#FFFFFF	#000000	##FFFFFF
##343AAA	1.00	9.01	2.33	9.01
#FFFFFF	9.01	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EAE

Deuteranopia (green-blind)

#0044A8

Tritanopia (blue-blind)

#00576D

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #343aaa;
/* rgb */ color: rgb(52, 58, 170);
/* oklch */ color: oklch(41.9% 0.176 273.6);

Tailwind

colors: {
  custom: {
    50: '#7b70c4',
    500: '#343aaa',
    950: '#000000',
  },
}

SCSS

$custom: #343aaa;
$custom-light: #7b70c4;
$custom-dark: #000000;

JSON

{
  "hex": "#343aaa",
  "rgb": {
    "r": 52,
    "g": 58,
    "b": 170
  },
  "hsl": {
    "h": 236.949,
    "s": 53.153,
    "l": 43.529
  },
  "oklch": {
    "l": 0.4195,
    "c": 0.17561,
    "h": 273.6
  },
  "luminance": 0.06658
}

Semantic roles & 50–950 ramp

primary

#343AAA

secondary

#C1BE78

accent

#D54BDD

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #343AAA

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

Preview Lab → · Contrast checker → · Palette generator →