#3440BC#3440BC

#3440BC is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.6% C 0.192 H 271.6°. Best body text is #FFFFFF at 8.06:1 contrast (WCAG AA passes).

Color values

HEX	#3440BC
RGB	rgb(52, 64, 188)
HSL	hsl(235, 57%, 47%)
HSV	hsv(235, 72%, 74%)
CMYK	cmyk(72.3%, 66%, 0%, 26.3%)
CIE-LAB	lab(34.04, 37.39, -66.43)
CIE-LCH	lch(34.04, 76.23, 299.37°)
OKLab	oklab(44.65% 0.0055 -0.192)
OKLCH	oklch(44.65% 0.192 271.6)
XYZ	xyz(12.3236, 8.0264, 48.4670)
Luminance	0.0803 (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

#3440BC #BCB034

analogous

#3484BC #3440BC #6C34BC

triadic

#3440BC #BC3440 #40BC34

tetradic

#3440BC #BC3484 #BCB034 #34BC6C

square

#3440BC #BC3484 #BCB034 #34BC6C

split-complementary

#3440BC #BC6C34 #84BC34

monochromatic

#191F5C #27308C #3440BC #5B66D2 #8B93DF

Accessibility & contrast

On white

8.06

#3440BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#3440BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3440BC

8.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3440BC	#FFFFFF	#000000	##FFFFFF
##3440BC	1.00	8.06	2.61	8.06
#FFFFFF	8.06	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C0

Deuteranopia (green-blind)

#004ABA

Tritanopia (blue-blind)

#006178

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3440bc;
/* rgb */ color: rgb(52, 64, 188);
/* oklch */ color: oklch(44.6% 0.192 271.6);

Tailwind

colors: {
  custom: {
    50: '#7f75d1',
    500: '#3440bc',
    950: '#000000',
  },
}

SCSS

$custom: #3440bc;
$custom-light: #7f75d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3440bc",
  "rgb": {
    "r": 52,
    "g": 64,
    "b": 188
  },
  "hsl": {
    "h": 234.706,
    "s": 56.667,
    "l": 47.059
  },
  "oklch": {
    "l": 0.44649,
    "c": 0.19212,
    "h": 271.6
  },
  "luminance": 0.08028
}

Semantic roles & 50–950 ramp

primary

#3440BC

secondary

#C9C383

accent

#D348E0

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3440BC

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

Preview Lab → · Contrast checker → · Palette generator →