#283639
Dark Blue
HEX
RGB
HSL
About #283639 Dark Blue
#283639 is a dark blue color. In the RGB color model, it is composed of 40 red, 54 green, and 57 blue. In the HSL color space, it has a hue of 191°, saturation of 18%, and lightness of 19%.
This color has a low lightness value, making it a dark color great for text and bold accents. With low saturation, it appears muted and subtle.
CSS Code & Gradients
Use #283639 in your CSS, SCSS, or Tailwind projects. Copy ready-to-use gradients.
Beautiful Gradients
Color Properties
191°
Hue
18%
Saturation
19%
Lightness
Dark Blue
Color Harmonies
Colors that work well with #283639 based on color theory.
Accessibility
WCAG 2.1 contrast ratio of #283639 against white and black backgrounds.
Aa#283639 on White
Contrast Ratio12.52:1
AA ✓AA Large ✓AAA ✓
Aa#283639 on Black
Contrast Ratio1.68:1
AA ✗AA Large ✗AAA ✗
Color Conversion Table
Complete conversion of #283639 across different color formats.
| Format | Value |
|---|---|
| HEX | #283639 |
| RGB | rgb(40, 54, 57) |
| HSL | hsl(191, 18%, 19%) |
| RGB Decimal | 40, 54, 57 |
| RGB Percent | 15.7%, 21.2%, 22.4% |
| CMYK (approx.) | 30%, 5%, 0%, 78% |
Related Palettes
12 palettes using #283639 or similar colors