HSL(221, 30%, 10%)

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(221,30%,10%)]

Color Conversions

Format Value CSS Usage
HSL hsl(221, 30%, 10%) color: hsl(221, 30%, 10%)
HEX #121721 color: #121721
RGB rgb(18, 23, 33) color: rgb(18, 23, 33)
CMYK cmyk(45%, 30%, 0%, 87%) —
HSV hsv(220, 45%, 13%) —
HWB hwb(220 7% 87%) color: hwb(220 7% 87%)
OKLCH oklch(0.2044 0.0215 263.92) color: oklch(0.2044 0.0215 263.92)
Lab lab(7.69 0.87 -7.72) color: lab(7.69 0.87 -7.72)
LCH lch(7.69 7.77 276.43) color: lch(7.69 7.77 276.43)

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 17.95:1
vs Black 1.17:1

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)

#14141F — rgb(20, 20, 31)

Deuteranopia (Green-blind)

#14141E — rgb(20, 20, 30)

Tritanopia (Blue-blind)

#121D1C — rgb(18, 29, 28)

Tints & Shades

Tints (Lighter →)

← Shades (Darker)

Saturation (0% → 100%)

CSS Code Snippets

background

background-color: hsl(221, 30%, 10%);

text

color: hsl(221, 30%, 10%);

border

border: 2px solid hsl(221, 30%, 10%);

gradient light

background: linear-gradient(to right, hsl(221, 30%, 30%), hsl(221, 30%, 10%));

gradient dark

background: linear-gradient(to right, hsl(221, 30%, 10%), hsl(221, 30%, 0%))

hex

background-color: #121721;

tailwind

bg-[hsl(221,30%,10%)]

box shadow

box-shadow: 0 4px 6px -1px hsl(221, 30%, 10%, 0.4);

css variable

--color-primary: hsl(221, 30%, 10%);

Related Colors

#17191C

221,10,10

#0D1526

221,50,10

#000000

221,30,0

#364463

221,30,30

#121B21

206,30,10

#121921

211,30,10

#121421

231,30,10

#121321

236,30,10

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, 30%, 10%)?

HEX: #121721 | RGB: rgb(18, 23, 33) | CMYK: 45%, 30%, 0%, 87% | HSV: 220°, 45%, 13%. Copy any format from the conversion table above.

What colors go well with #121721?

The complementary color is HSL(41, 30%, 10%). 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, 30%, 10%) in CSS?

As HSL: color: hsl(221, 30%, 10%); — As HEX: color: #121721; — As RGB: color: rgb(18, 23, 33); — Tailwind CSS: bg-[hsl(221,30%,10%)] — CSS variable: --color-primary: hsl(221, 30%, 10%);