HSL(221, 91%, 6%)

Very Dark Blue — Blue color

Adjust Color

Color Information

Color Name

Very Dark Blue

Color Family

Blue

Warm / Cool

🔵 Cool

Temperature

9000K

CSS Class

bg-[hsl(221,91%,6%)]

Color Conversions

Format Value CSS Usage
HSL hsl(221, 91%, 6%) color: hsl(221, 91%, 6%)
HEX #010A1D color: #010A1D
RGB rgb(1, 10, 29) color: rgb(1, 10, 29)
CMYK cmyk(97%, 66%, 0%, 89%)
HSV hsv(221, 97%, 11%)
HWB hwb(221 0% 89%) color: hwb(221 0% 89%)
OKLCH oklch(0.1472 0.0453 256.86) color: oklch(0.1472 0.0453 256.86)
Lab lab(2.82 1.88 -12.11) color: lab(2.82 1.88 -12.11)
LCH lch(2.82 12.26 278.82) color: lch(2.82 12.26 278.82)

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 19.77:1
vs Black 1.06:1

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)

#050518 — rgb(5, 5, 24)

Deuteranopia (Green-blind)

#040417 — rgb(4, 4, 23)

Tritanopia (Blue-blind)

#011514 — rgb(1, 21, 20)

Tints & Shades

Tints (Lighter →)

← Shades (Darker)

Saturation (0% → 100%)

CSS Code Snippets

background

background-color: hsl(221, 91%, 6%);

text

color: hsl(221, 91%, 6%);

border

border: 2px solid hsl(221, 91%, 6%);

gradient light

background: linear-gradient(to right, hsl(221, 91%, 26%), hsl(221, 91%, 6%));

gradient dark

background: linear-gradient(to right, hsl(221, 91%, 6%), hsl(221, 91%, 0%))

hex

background-color: #010A1D;

tailwind

bg-[hsl(221,91%,6%)]

box shadow

box-shadow: 0 4px 6px -1px hsl(221, 91%, 6%, 0.4);

css variable

--color-primary: hsl(221, 91%, 6%);

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, 91%, 6%)?

HEX: #010A1D | RGB: rgb(1, 10, 29) | CMYK: 97%, 66%, 0%, 89% | HSV: 221°, 97%, 11%. Copy any format from the conversion table above.

What colors go well with #010A1D?

The complementary color is HSL(41, 91%, 6%). 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, 91%, 6%) in CSS?

As HSL: color: hsl(221, 91%, 6%); — As HEX: color: #010A1D; — As RGB: color: rgb(1, 10, 29); — Tailwind CSS: bg-[hsl(221,91%,6%)] — CSS variable: --color-primary: hsl(221, 91%, 6%);