HSL(221, 72%, 43%)
Blue — Blue color
Adjust Color
Color Information
Color Name
Blue
Color Family
Blue
Warm / Cool
🔵 Cool
Temperature
9000K
CSS Class
bg-[hsl(221,72%,43%)]
Color Conversions
| Format | Value | CSS Usage | |
|---|---|---|---|
| HSL | hsl(221, 72%, 43%) | color: hsl(221, 72%, 43%) | |
| HEX | #1F51BD | color: #1F51BD | |
| RGB | rgb(31, 81, 189) | color: rgb(31, 81, 189) | |
| CMYK | cmyk(84%, 57%, 0%, 26%) | — | |
| HSV | hsv(221, 84%, 74%) | — | |
| HWB | hwb(221 12% 26%) | color: hwb(221 12% 26%) | |
| OKLCH | oklch(0.4706 0.1785 262.8) | color: oklch(0.4706 0.1785 262.8) | |
| Lab | lab(37.57 24.64 -61.28) | color: lab(37.57 24.64 -61.28) | |
| LCH | lch(37.57 66.05 291.9) | color: lch(37.57 66.05 291.9) |
Color Theory
Accessibility (WCAG)
White text on color
Black text on color
Colored text
Contrast Ratios
AA Normal (4.5:1)
AA Large (3:1)
AAA Normal (7:1)
Best text on this color: white
Color Blindness Simulation
Protanopia (Red-blind)
#3535A3 — rgb(53, 53, 163)
Deuteranopia (Green-blind)
#322E9D — rgb(50, 46, 157)
Tritanopia (Blue-blind)
#228E8A — rgb(34, 142, 138)
Tints & Shades
CSS Code Snippets
background
background-color: hsl(221, 72%, 43%);
text
color: hsl(221, 72%, 43%);
border
border: 2px solid hsl(221, 72%, 43%);
gradient light
background: linear-gradient(to right, hsl(221, 72%, 63%), hsl(221, 72%, 43%));
gradient dark
background: linear-gradient(to right, hsl(221, 72%, 43%), hsl(221, 72%, 23%))
hex
background-color: #1F51BD;
tailwind
bg-[hsl(221,72%,43%)]
box shadow
box-shadow: 0 4px 6px -1px hsl(221, 72%, 43%, 0.4);
css variable
--color-primary: hsl(221, 72%, 43%);
Related Colors
Use Cases for Blue
Frequently Asked Questions
What are all the color codes for HSL(221, 72%, 43%)?
HEX: #1F51BD | RGB: rgb(31, 81, 189) | CMYK: 84%, 57%, 0%, 26% | HSV: 221°, 84%, 74%. Copy any format from the conversion table above.
What colors go well with #1F51BD?
The complementary color is HSL(41, 72%, 43%). For a triadic harmony, use hues 221°, 341°, and 101°. For analogous combinations, try hues 191° and 251°. See the Color Harmony section above for complete palettes with previews.
How do I use HSL(221, 72%, 43%) in CSS?
As HSL: color: hsl(221, 72%, 43%); — As HEX: color: #1F51BD; — As RGB: color: rgb(31, 81, 189); — Tailwind CSS: bg-[hsl(221,72%,43%)] — CSS variable: --color-primary: hsl(221, 72%, 43%);