#1F3751
Dark Blue
HEX
RGB
HSL
About #1F3751 Dark Blue
#1F3751 is a dark blue color. In the RGB color model, it is composed of 31 red, 55 green, and 81 blue. In the HSL color space, it has a hue of 211°, saturation of 45%, and lightness of 22%.
This color has a low lightness value, making it a dark color great for text and bold accents. With moderate saturation, it appears balanced and versatile.
CSS Code
Use #1F3751 in your CSS, SCSS, or Tailwind projects.
Color Properties
211°
Hue
45%
Saturation
22%
Lightness
Dark Blue
Color Harmonies
Colors that work well with #1F3751 based on color theory.
Accessibility
WCAG 2.1 contrast ratio of #1F3751 against white and black backgrounds.
Aa#1F3751 on White
Contrast Ratio12.18:1
AA ✓AA Large ✓AAA ✓
Aa#1F3751 on Black
Contrast Ratio1.72:1
AA ✗AA Large ✗AAA ✗
Color Conversion Table
Complete conversion of #1F3751 across different color formats.
| Format | Value |
|---|---|
| HEX | #1F3751 |
| RGB | rgb(31, 55, 81) |
| HSL | hsl(211, 45%, 22%) |
| RGB Decimal | 31, 55, 81 |
| RGB Percent | 12.2%, 21.6%, 31.8% |
| CMYK (approx.) | 62%, 32%, 0%, 68% |
Related Palettes
12 palettes using #1F3751 or similar colors