#3340AF#3340AF

#3340AF is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.4% C 0.175 H 271.7°. Best body text is #FFFFFF at 8.42:1 contrast (WCAG AA passes).

Color values

HEX	#3340AF
RGB	rgb(51, 64, 175)
HSL	hsl(234, 55%, 44%)
HSV	hsv(234, 71%, 69%)
CMYK	cmyk(70.9%, 63.4%, 0%, 31.4%)
CIE-LAB	lab(32.84, 32.65, -60.70)
CIE-LCH	lch(32.84, 68.92, 298.27°)
OKLab	oklab(43.41% 0.0052 -0.1753)
OKLCH	oklch(43.41% 0.175 271.7)
XYZ	xyz(10.9339, 7.4647, 41.4137)
Luminance	0.0747 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.92

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3340AF #AFA233

analogous

#337EAF #3340AF #6433AF

triadic

#3340AF #AF3340 #40AF33

tetradic

#3340AF #AF337E #AFA233 #33AF64

square

#3340AF #AF337E #AFA233 #33AF64

split-complementary

#3340AF #AF6433 #7EAF33

monochromatic

#171D50 #252F80 #3340AF #525FCD #828BDB

Accessibility & contrast

On white

8.42

#3340AF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#3340AF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3340AF

8.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3340AF	#FFFFFF	#000000	##FFFFFF
##3340AF	1.00	8.42	2.49	8.42
#FFFFFF	8.42	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053B3

Deuteranopia (green-blind)

#0048AD

Tritanopia (blue-blind)

#005D71

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3340af;
/* rgb */ color: rgb(51, 64, 175);
/* oklch */ color: oklch(43.4% 0.175 271.7);

Tailwind

colors: {
  custom: {
    50: '#7c75c8',
    500: '#3340af',
    950: '#000000',
  },
}

SCSS

$custom: #3340af;
$custom-light: #7c75c8;
$custom-dark: #000000;

JSON

{
  "hex": "#3340af",
  "rgb": {
    "r": 51,
    "g": 64,
    "b": 175
  },
  "hsl": {
    "h": 233.71,
    "s": 54.867,
    "l": 44.314
  },
  "oklch": {
    "l": 0.43408,
    "c": 0.17534,
    "h": 271.7
  },
  "luminance": 0.07466
}

Semantic roles & 50–950 ramp

primary

#3340AF

secondary

#C4BC7A

accent

#CF4ADE

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3340AF

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

Preview Lab → · Contrast checker → · Palette generator →