#3440A3#3440A3

#3440A3 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.4% C 0.159 H 272.4°. Best body text is #FFFFFF at 8.72:1 contrast (WCAG AA passes).

Color values

HEX	#3440A3
RGB	rgb(52, 64, 163)
HSL	hsl(234, 52%, 42%)
HSV	hsv(234, 68%, 64%)
CMYK	cmyk(68.1%, 60.7%, 0%, 36.1%)
CIE-LAB	lab(31.90, 28.46, -55.05)
CIE-LCH	lch(31.90, 61.97, 297.34°)
OKLab	oklab(42.42% 0.0067 -0.1587)
OKLCH	oklch(42.42% 0.159 272.4)
XYZ	xyz(9.8582, 7.0403, 35.4826)
Luminance	0.0704 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3440A3 #A39734

analogous

#3477A3 #3440A3 #6034A3

triadic

#3440A3 #A33440 #40A334

tetradic

#3440A3 #A33477 #A39734 #34A360

square

#3440A3 #A33477 #A39734 #34A360

split-complementary

#3440A3 #A36034 #77A334

monochromatic

#161C46 #252E75 #3440A3 #4E5BC6 #7C86D5

Accessibility & contrast

On white

8.72

#3440A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#3440A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3440A3

8.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3440A3	#FFFFFF	#000000	##FFFFFF
##3440A3	1.00	8.72	2.41	8.72
#FFFFFF	8.72	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A6

Deuteranopia (green-blind)

#0046A1

Tritanopia (blue-blind)

#00596B

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3440a3;
/* rgb */ color: rgb(52, 64, 163);
/* oklch */ color: oklch(42.4% 0.159 272.4);

Tailwind

colors: {
  custom: {
    50: '#7974bf',
    500: '#3440a3',
    950: '#000000',
  },
}

SCSS

$custom: #3440a3;
$custom-light: #7974bf;
$custom-dark: #000000;

JSON

{
  "hex": "#3440a3",
  "rgb": {
    "r": 52,
    "g": 64,
    "b": 163
  },
  "hsl": {
    "h": 233.514,
    "s": 51.628,
    "l": 42.157
  },
  "oklch": {
    "l": 0.42416,
    "c": 0.15879,
    "h": 272.4
  },
  "luminance": 0.07041
}

Semantic roles & 50–950 ramp

primary

#3440A3

secondary

#BEB675

accent

#CC4DDB

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #3440A3

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

Preview Lab → · Contrast checker → · Palette generator →