HSL(256, 40%, 18%)
Indigo — Indigo color
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Color Information
Color Name
Indigo
Color Family
Indigo
Warm / Cool
🔵 Cool
Temperature
9000K
CSS Class
bg-[hsl(256,40%,18%)]
Color Conversions
| Format | Value | CSS Usage | |
|---|---|---|---|
| HSL | hsl(256, 40%, 18%) | color: hsl(256, 40%, 18%) | |
| HEX | #251C40 | color: #251C40 | |
| RGB | rgb(37, 28, 64) | color: rgb(37, 28, 64) | |
| CMYK | cmyk(42%, 56%, 0%, 75%) | — | |
| HSV | hsv(255, 56%, 25%) | — | |
| HWB | hwb(255 11% 75%) | color: hwb(255 11% 75%) | |
| OKLCH | oklch(0.2576 0.0659 292.69) | color: oklch(0.2576 0.0659 292.69) | |
| Lab | lab(13.19 14.54 -21.51) | color: lab(13.19 14.54 -21.51) | |
| LCH | lch(13.19 25.96 304.06) | color: lch(13.19 25.96 304.06) |
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)
#212137 — rgb(33, 33, 55)
Deuteranopia (Green-blind)
#222235 — rgb(34, 34, 53)
Tritanopia (Blue-blind)
#25302F — rgb(37, 48, 47)
Tints & Shades
CSS Code Snippets
background
background-color: hsl(256, 40%, 18%);
text
color: hsl(256, 40%, 18%);
border
border: 2px solid hsl(256, 40%, 18%);
gradient light
background: linear-gradient(to right, hsl(256, 40%, 38%), hsl(256, 40%, 18%));
gradient dark
background: linear-gradient(to right, hsl(256, 40%, 18%), hsl(256, 40%, 0%))
hex
background-color: #251C40;
tailwind
bg-[hsl(256,40%,18%)]
box shadow
box-shadow: 0 4px 6px -1px hsl(256, 40%, 18%, 0.4);
css variable
--color-primary: hsl(256, 40%, 18%);
Related Colors
Use Cases for Indigo
Frequently Asked Questions
What are all the color codes for HSL(256, 40%, 18%)?
HEX: #251C40 | RGB: rgb(37, 28, 64) | CMYK: 42%, 56%, 0%, 75% | HSV: 255°, 56%, 25%. Copy any format from the conversion table above.
What colors go well with #251C40?
The complementary color is HSL(76, 40%, 18%). For a triadic harmony, use hues 256°, 16°, and 136°. For analogous combinations, try hues 226° and 286°. See the Color Harmony section above for complete palettes with previews.
How do I use HSL(256, 40%, 18%) in CSS?
As HSL: color: hsl(256, 40%, 18%); — As HEX: color: #251C40; — As RGB: color: rgb(37, 28, 64); — Tailwind CSS: bg-[hsl(256,40%,18%)] — CSS variable: --color-primary: hsl(256, 40%, 18%);