HSL(221, 45%, 9%)

Very Dark Blue — Blue color

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Color Information

Color Name

Very Dark Blue

Color Family

Blue

Warm / Cool

🔵 Cool

Temperature

9000K

CSS Class

bg-[hsl(221,45%,9%)]

Color Conversions

Format Value CSS Usage
HSL hsl(221, 45%, 9%) color: hsl(221, 45%, 9%)
HEX #0D1321 color: #0D1321
RGB rgb(13, 19, 33) color: rgb(13, 19, 33)
CMYK cmyk(61%, 42%, 0%, 87%)
HSV hsv(222, 61%, 13%)
HWB hwb(222 5% 87%) color: hwb(222 5% 87%)
OKLCH oklch(0.1884 0.0302 265.88) color: oklch(0.1884 0.0302 265.88)
Lab lab(5.97 1.84 -10.39) color: lab(5.97 1.84 -10.39)
LCH lch(5.97 10.55 280.04) color: lch(5.97 10.55 280.04)

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 18.55:1
vs Black 1.13:1

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)

#10101E — rgb(16, 16, 30)

Deuteranopia (Green-blind)

#0F0F1D — rgb(15, 15, 29)

Tritanopia (Blue-blind)

#0D1B1A — rgb(13, 27, 26)

Tints & Shades

Tints (Lighter →)

← Shades (Darker)

Saturation (0% → 100%)

CSS Code Snippets

background

background-color: hsl(221, 45%, 9%);

text

color: hsl(221, 45%, 9%);

border

border: 2px solid hsl(221, 45%, 9%);

gradient light

background: linear-gradient(to right, hsl(221, 45%, 29%), hsl(221, 45%, 9%));

gradient dark

background: linear-gradient(to right, hsl(221, 45%, 9%), hsl(221, 45%, 0%))

hex

background-color: #0D1321;

tailwind

bg-[hsl(221,45%,9%)]

box shadow

box-shadow: 0 4px 6px -1px hsl(221, 45%, 9%, 0.4);

css variable

--color-primary: hsl(221, 45%, 9%);

Related Colors

Use Cases for Very Dark Blue

Corporate branding Trust signals Tech products Social media Primary buttons

Frequently Asked Questions

What are all the color codes for HSL(221, 45%, 9%)?

HEX: #0D1321 | RGB: rgb(13, 19, 33) | CMYK: 61%, 42%, 0%, 87% | HSV: 222°, 61%, 13%. Copy any format from the conversion table above.

What colors go well with #0D1321?

The complementary color is HSL(41, 45%, 9%). 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, 45%, 9%) in CSS?

As HSL: color: hsl(221, 45%, 9%); — As HEX: color: #0D1321; — As RGB: color: rgb(13, 19, 33); — Tailwind CSS: bg-[hsl(221,45%,9%)] — CSS variable: --color-primary: hsl(221, 45%, 9%);