HSL(221, 21%, 40%)
Blue — Blue color
Adjust Color
Color Information
Color Name
Blue
Color Family
Blue
Warm / Cool
🔵 Cool
Temperature
9000K
CSS Class
bg-[hsl(221,21%,40%)]
Color Conversions
| Format | Value | CSS Usage | |
|---|---|---|---|
| HSL | hsl(221, 21%, 40%) | color: hsl(221, 21%, 40%) | |
| HEX | #515E7B | color: #515E7B | |
| RGB | rgb(81, 94, 123) | color: rgb(81, 94, 123) | |
| CMYK | cmyk(34%, 24%, 0%, 52%) | — | |
| HSV | hsv(221, 34%, 48%) | — | |
| HWB | hwb(221 32% 52%) | color: hwb(221 32% 52%) | |
| OKLCH | oklch(0.4826 0.0497 265.81) | color: oklch(0.4826 0.0497 265.81) | |
| Lab | lab(39.89 2.54 -17.92) | color: lab(39.89 2.54 -17.92) | |
| LCH | lch(39.89 18.1 278.07) | color: lch(39.89 18.1 278.07) |
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)
#575774 — rgb(87, 87, 116)
Deuteranopia (Green-blind)
#565572 — rgb(86, 85, 114)
Tritanopia (Blue-blind)
#526E6D — rgb(82, 110, 109)
Tints & Shades
CSS Code Snippets
background
background-color: hsl(221, 21%, 40%);
text
color: hsl(221, 21%, 40%);
border
border: 2px solid hsl(221, 21%, 40%);
gradient light
background: linear-gradient(to right, hsl(221, 21%, 60%), hsl(221, 21%, 40%));
gradient dark
background: linear-gradient(to right, hsl(221, 21%, 40%), hsl(221, 21%, 20%))
hex
background-color: #515E7B;
tailwind
bg-[hsl(221,21%,40%)]
box shadow
box-shadow: 0 4px 6px -1px hsl(221, 21%, 40%, 0.4);
css variable
--color-primary: hsl(221, 21%, 40%);
Related Colors
Use Cases for Blue
Frequently Asked Questions
What are all the color codes for HSL(221, 21%, 40%)?
HEX: #515E7B | RGB: rgb(81, 94, 123) | CMYK: 34%, 24%, 0%, 52% | HSV: 221°, 34%, 48%. Copy any format from the conversion table above.
What colors go well with #515E7B?
The complementary color is HSL(41, 21%, 40%). 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, 21%, 40%) in CSS?
As HSL: color: hsl(221, 21%, 40%); — As HEX: color: #515E7B; — As RGB: color: rgb(81, 94, 123); — Tailwind CSS: bg-[hsl(221,21%,40%)] — CSS variable: --color-primary: hsl(221, 21%, 40%);