#3440BD#3440BD

#3440BD is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.7% C 0.193 H 271.6°. Best body text is #FFFFFF at 8.03:1 contrast (WCAG AA passes).

Color values

HEX	#3440BD
RGB	rgb(52, 64, 189)
HSL	hsl(235, 57%, 47%)
HSV	hsv(235, 72%, 74%)
CMYK	cmyk(72.5%, 66.1%, 0%, 25.9%)
CIE-LAB	lab(34.13, 37.74, -66.88)
CIE-LCH	lch(34.13, 76.79, 299.44°)
OKLab	oklab(44.74% 0.0054 -0.1933)
OKLCH	oklch(44.74% 0.193 271.6)
XYZ	xyz(12.4318, 8.0697, 49.0367)
Luminance	0.0807 (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

#3440BD #BDB134

analogous

#3484BD #3440BD #6D34BD

triadic

#3440BD #BD3440 #40BD34

tetradic

#3440BD #BD3484 #BDB134 #34BD6D

square

#3440BD #BD3484 #BDB134 #34BD6D

split-complementary

#3440BD #BD6D34 #84BD34

monochromatic

#1A1F5D #27308D #3440BD #5C66D2 #8C93DF

Accessibility & contrast

On white

8.03

#3440BD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#3440BD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3440BD

8.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3440BD	#FFFFFF	#000000	##FFFFFF
##3440BD	1.00	8.03	2.61	8.03
#FFFFFF	8.03	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057C1

Deuteranopia (green-blind)

#004ABB

Tritanopia (blue-blind)

#006179

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3440bd;
/* rgb */ color: rgb(52, 64, 189);
/* oklch */ color: oklch(44.7% 0.193 271.6);

Tailwind

colors: {
  custom: {
    50: '#7f75d2',
    500: '#3440bd',
    950: '#000000',
  },
}

SCSS

$custom: #3440bd;
$custom-light: #7f75d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3440bd",
  "rgb": {
    "r": 52,
    "g": 64,
    "b": 189
  },
  "hsl": {
    "h": 234.745,
    "s": 56.846,
    "l": 47.255
  },
  "oklch": {
    "l": 0.44742,
    "c": 0.1934,
    "h": 271.6
  },
  "luminance": 0.08071
}

Semantic roles & 50–950 ramp

primary

#3440BD

secondary

#CAC383

accent

#D348E0

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3440BD

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

Preview Lab → · Contrast checker → · Palette generator →