#3440A4#3440A4

#3440A4 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.5% C 0.160 H 272.4°. Best body text is #FFFFFF at 8.69:1 contrast (WCAG AA passes).

Color values

HEX	#3440A4
RGB	rgb(52, 64, 164)
HSL	hsl(234, 52%, 42%)
HSV	hsv(234, 68%, 64%)
CMYK	cmyk(68.3%, 61%, 0%, 35.7%)
CIE-LAB	lab(31.98, 28.82, -55.52)
CIE-LCH	lch(31.98, 62.55, 297.44°)
OKLab	oklab(42.5% 0.0067 -0.16)
OKLCH	oklch(42.5% 0.16 272.4)
XYZ	xyz(9.9482, 7.0763, 35.9564)
Luminance	0.0708 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3440A4 #A49834

analogous

#3478A4 #3440A4 #6034A4

triadic

#3440A4 #A43440 #40A434

tetradic

#3440A4 #A43478 #A49834 #34A460

square

#3440A4 #A43478 #A49834 #34A460

split-complementary

#3440A4 #A46034 #78A434

monochromatic

#171C47 #252E76 #3440A4 #4E5BC7 #7D86D6

Accessibility & contrast

On white

8.69

#3440A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#3440A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3440A4

8.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3440A4	#FFFFFF	#000000	##FFFFFF
##3440A4	1.00	8.69	2.42	8.69
#FFFFFF	8.69	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A7

Deuteranopia (green-blind)

#0046A2

Tritanopia (blue-blind)

#00596B

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3440a4;
/* rgb */ color: rgb(52, 64, 164);
/* oklch */ color: oklch(42.5% 0.160 272.4);

Tailwind

colors: {
  custom: {
    50: '#7a74c0',
    500: '#3440a4',
    950: '#000000',
  },
}

SCSS

$custom: #3440a4;
$custom-light: #7a74c0;
$custom-dark: #000000;

JSON

{
  "hex": "#3440a4",
  "rgb": {
    "r": 52,
    "g": 64,
    "b": 164
  },
  "hsl": {
    "h": 233.571,
    "s": 51.852,
    "l": 42.353
  },
  "oklch": {
    "l": 0.42501,
    "c": 0.16017,
    "h": 272.4
  },
  "luminance": 0.07077
}

Semantic roles & 50–950 ramp

primary

#3440A4

secondary

#BFB775

accent

#CC4CDB

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #3440A4

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

Preview Lab → · Contrast checker → · Palette generator →