#3440B4#3440B4

#3440B4 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.9% C 0.182 H 271.9°. Best body text is #FFFFFF at 8.27:1 contrast (WCAG AA passes).

Color values

HEX	#3440B4
RGB	rgb(52, 64, 180)
HSL	hsl(234, 55%, 45%)
HSV	hsv(234, 71%, 71%)
CMYK	cmyk(71.1%, 64.4%, 0%, 29.4%)
CIE-LAB	lab(33.33, 34.56, -62.87)
CIE-LCH	lch(33.33, 71.74, 298.80°)
OKLab	oklab(43.92% 0.006 -0.1816)
OKLCH	oklch(43.92% 0.182 271.9)
XYZ	xyz(11.4850, 7.6910, 44.0504)
Luminance	0.0769 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3440B4 #B4A834

analogous

#3480B4 #3440B4 #6834B4

triadic

#3440B4 #B43440 #40B434

tetradic

#3440B4 #B43480 #B4A834 #34B468

square

#3440B4 #B43480 #B4A834 #34B468

split-complementary

#3440B4 #B46834 #80B434

monochromatic

#191E55 #262F85 #3440B4 #5762CE #868EDC

Accessibility & contrast

On white

8.27

#3440B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#3440B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3440B4

8.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3440B4	#FFFFFF	#000000	##FFFFFF
##3440B4	1.00	8.27	2.54	8.27
#FFFFFF	8.27	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054B8

Deuteranopia (green-blind)

#0049B2

Tritanopia (blue-blind)

#005E74

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3440b4;
/* rgb */ color: rgb(52, 64, 180);
/* oklch */ color: oklch(43.9% 0.182 271.9);

Tailwind

colors: {
  custom: {
    50: '#7d75cb',
    500: '#3440b4',
    950: '#000000',
  },
}

SCSS

$custom: #3440b4;
$custom-light: #7d75cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3440b4",
  "rgb": {
    "r": 52,
    "g": 64,
    "b": 180
  },
  "hsl": {
    "h": 234.375,
    "s": 55.172,
    "l": 45.49
  },
  "oklch": {
    "l": 0.43915,
    "c": 0.18169,
    "h": 271.9
  },
  "luminance": 0.07692
}

Semantic roles & 50–950 ramp

primary

#3440B4

secondary

#C6BF7E

accent

#D149DF

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3440B4

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

Preview Lab → · Contrast checker → · Palette generator →