#3440A7#3440A7

#3440A7 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.8% C 0.164 H 272.3°. Best body text is #FFFFFF at 8.62:1 contrast (WCAG AA passes).

Color values

HEX	#3440A7
RGB	rgb(52, 64, 167)
HSL	hsl(234, 53%, 43%)
HSV	hsv(234, 69%, 65%)
CMYK	cmyk(68.9%, 61.7%, 0%, 34.5%)
CIE-LAB	lab(32.23, 29.91, -56.92)
CIE-LCH	lch(32.23, 64.30, 297.72°)
OKLab	oklab(42.76% 0.0066 -0.1641)
OKLCH	oklch(42.76% 0.164 272.3)
XYZ	xyz(10.2223, 7.1859, 37.4000)
Luminance	0.0719 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3440A7 #A79B34

analogous

#3479A7 #3440A7 #6134A7

triadic

#3440A7 #A73440 #40A734

tetradic

#3440A7 #A73479 #A79B34 #34A761

square

#3440A7 #A73479 #A79B34 #34A761

split-complementary

#3440A7 #A76134 #79A734

monochromatic

#171C4A #252E78 #3440A7 #505CC8 #7E88D7

Accessibility & contrast

On white

8.62

#3440A7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#3440A7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3440A7

8.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3440A7	#FFFFFF	#000000	##FFFFFF
##3440A7	1.00	8.62	2.44	8.62
#FFFFFF	8.62	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051AA

Deuteranopia (green-blind)

#0047A5

Tritanopia (blue-blind)

#005A6D

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3440a7;
/* rgb */ color: rgb(52, 64, 167);
/* oklch */ color: oklch(42.8% 0.164 272.3);

Tailwind

colors: {
  custom: {
    50: '#7a74c2',
    500: '#3440a7',
    950: '#000000',
  },
}

SCSS

$custom: #3440a7;
$custom-light: #7a74c2;
$custom-dark: #000000;

JSON

{
  "hex": "#3440a7",
  "rgb": {
    "r": 52,
    "g": 64,
    "b": 167
  },
  "hsl": {
    "h": 233.739,
    "s": 52.511,
    "l": 42.941
  },
  "oklch": {
    "l": 0.4276,
    "c": 0.16427,
    "h": 272.3
  },
  "luminance": 0.07187
}

Semantic roles & 50–950 ramp

primary

#3440A7

secondary

#C0B877

accent

#CD4CDC

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #3440A7

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

Preview Lab → · Contrast checker → · Palette generator →