#3440AB#3440AB

#3440AB is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.1% C 0.170 H 272.2°. Best body text is #FFFFFF at 8.51:1 contrast (WCAG AA passes).

Color values

HEX	#3440AB
RGB	rgb(52, 64, 171)
HSL	hsl(234, 53%, 44%)
HSV	hsv(234, 70%, 67%)
CMYK	cmyk(69.6%, 62.6%, 0%, 32.9%)
CIE-LAB	lab(32.56, 31.34, -58.77)
CIE-LCH	lch(32.56, 66.61, 298.07°)
OKLab	oklab(43.11% 0.0065 -0.1696)
OKLCH	oklch(43.11% 0.17 272.2)
XYZ	xyz(10.5978, 7.3361, 39.3777)
Luminance	0.0734 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.26

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3440AB #AB9F34

analogous

#347BAB #3440AB #6334AB

triadic

#3440AB #AB3440 #40AB34

tetradic

#3440AB #AB347B #AB9F34 #34AB63

square

#3440AB #AB347B #AB9F34 #34AB63

split-complementary

#3440AB #AB6334 #7BAB34

monochromatic

#171D4D #262E7C #3440AB #525ECA #818AD9

Accessibility & contrast

On white

8.51

#3440AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#3440AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3440AB

8.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3440AB	#FFFFFF	#000000	##FFFFFF
##3440AB	1.00	8.51	2.47	8.51
#FFFFFF	8.51	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052AE

Deuteranopia (green-blind)

#0047A9

Tritanopia (blue-blind)

#005B6F

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3440ab;
/* rgb */ color: rgb(52, 64, 171);
/* oklch */ color: oklch(43.1% 0.170 272.2);

Tailwind

colors: {
  custom: {
    50: '#7b75c5',
    500: '#3440ab',
    950: '#000000',
  },
}

SCSS

$custom: #3440ab;
$custom-light: #7b75c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3440ab",
  "rgb": {
    "r": 52,
    "g": 64,
    "b": 171
  },
  "hsl": {
    "h": 233.95,
    "s": 53.363,
    "l": 43.725
  },
  "oklch": {
    "l": 0.4311,
    "c": 0.16969,
    "h": 272.2
  },
  "luminance": 0.07337
}

Semantic roles & 50–950 ramp

primary

#3440AB

secondary

#C2BB79

accent

#CE4BDD

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3440AB

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

Preview Lab → · Contrast checker → · Palette generator →