HSL(257, 99%, 15%)

Indigo — Indigo color

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Color Information

Color Name

Indigo

Color Family

Indigo

Warm / Cool

🔵 Cool

Temperature

9000K

CSS Class

bg-[hsl(257,99%,15%)]

Color Conversions

Format Value CSS Usage
HSL hsl(257, 99%, 15%) color: hsl(257, 99%, 15%)
HEX #16004C color: #16004C
RGB rgb(22, 0, 76) color: rgb(22, 0, 76)
CMYK cmyk(71%, 100%, 0%, 70%)
HSV hsv(257, 100%, 30%)
HWB hwb(257 0% 70%) color: hwb(257 0% 70%)
OKLCH oklch(0.2067 0.1227 282.66) color: oklch(0.2067 0.1227 282.66)
Lab lab(6.25 33.15 -41.31) color: lab(6.25 33.15 -41.31)
LCH lch(6.25 52.97 308.75) color: lch(6.25 52.97 308.75)

Color Theory

Complementary

Triadic

Analogous

Tetradic (Square)

Split-Complementary

Accessibility (WCAG)

White text on color

Black text on color

Color on white bg

Colored text

Contrast Ratios

vs White 18.45:1
vs Black 1.14:1

AA Normal (4.5:1)

on White: PASS ✓ on Black: FAIL ✗

AA Large (3:1)

on White: PASS ✓ on Black: FAIL ✗

AAA Normal (7:1)

on White: PASS ✓

Best text on this color: white

Color Blindness Simulation

Protanopia (Red-blind)

#0C0C3A — rgb(12, 12, 58)

Deuteranopia (Green-blind)

#0E0F35 — rgb(14, 15, 53)

Tritanopia (Blue-blind)

#152B28 — rgb(21, 43, 40)

Tints & Shades

Tints (Lighter →)

← Shades (Darker)

Saturation (0% → 100%)

CSS Code Snippets

background

background-color: hsl(257, 99%, 15%);

text

color: hsl(257, 99%, 15%);

border

border: 2px solid hsl(257, 99%, 15%);

gradient light

background: linear-gradient(to right, hsl(257, 99%, 35%), hsl(257, 99%, 15%));

gradient dark

background: linear-gradient(to right, hsl(257, 99%, 15%), hsl(257, 99%, 0%))

hex

background-color: #16004C;

tailwind

bg-[hsl(257,99%,15%)]

box shadow

box-shadow: 0 4px 6px -1px hsl(257, 99%, 15%, 0.4);

css variable

--color-primary: hsl(257, 99%, 15%);

Related Colors

Use Cases for Indigo

UI elements Web design Branding Graphic design Print design

Frequently Asked Questions

What are all the color codes for HSL(257, 99%, 15%)?

HEX: #16004C | RGB: rgb(22, 0, 76) | CMYK: 71%, 100%, 0%, 70% | HSV: 257°, 100%, 30%. Copy any format from the conversion table above.

What colors go well with #16004C?

The complementary color is HSL(77, 99%, 15%). For a triadic harmony, use hues 257°, 17°, and 137°. For analogous combinations, try hues 227° and 287°. See the Color Harmony section above for complete palettes with previews.

How do I use HSL(257, 99%, 15%) in CSS?

As HSL: color: hsl(257, 99%, 15%); — As HEX: color: #16004C; — As RGB: color: rgb(22, 0, 76); — Tailwind CSS: bg-[hsl(257,99%,15%)] — CSS variable: --color-primary: hsl(257, 99%, 15%);