HSL(216, 31%, 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(216,31%,10%)]

Color Conversions

Format Value CSS Usage
HSL hsl(216, 31%, 10%) color: hsl(216, 31%, 10%)
HEX #121821 color: #121821
RGB rgb(18, 24, 33) color: rgb(18, 24, 33)
CMYK cmyk(45%, 27%, 0%, 87%) —
HSV hsv(216, 45%, 13%) —
HWB hwb(216 7% 87%) color: hwb(216 7% 87%)
OKLCH oklch(0.2073 0.0202 258.34) color: oklch(0.2073 0.0202 258.34)
Lab lab(8.05 0.12 -7.16) color: lab(8.05 0.12 -7.16)
LCH lch(8.05 7.16 270.96) color: lch(8.05 7.16 270.96)

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 17.82:1
vs Black 1.18:1

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)

#15151F — rgb(21, 21, 31)

Deuteranopia (Green-blind)

#14141E — rgb(20, 20, 30)

Tritanopia (Blue-blind)

#121D1D — rgb(18, 29, 29)

Tints & Shades

Tints (Lighter →)

← Shades (Darker)

Saturation (0% → 100%)

CSS Code Snippets

background

background-color: hsl(216, 31%, 10%);

text

color: hsl(216, 31%, 10%);

border

border: 2px solid hsl(216, 31%, 10%);

gradient light

background: linear-gradient(to right, hsl(216, 31%, 30%), hsl(216, 31%, 10%));

gradient dark

background: linear-gradient(to right, hsl(216, 31%, 10%), hsl(216, 31%, 0%))

hex

background-color: #121821;

tailwind

bg-[hsl(216,31%,10%)]

box shadow

box-shadow: 0 4px 6px -1px hsl(216, 31%, 10%, 0.4);

css variable

--color-primary: hsl(216, 31%, 10%);

Related Colors

#17191C

216,11,10

#0C1727

216,51,10

#000000

216,31,0

#354864

216,31,30

#121C21

201,31,10

#121B21

206,31,10

#121521

226,31,10

#121421

231,31,10

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(216, 31%, 10%)?

HEX: #121821 | RGB: rgb(18, 24, 33) | CMYK: 45%, 27%, 0%, 87% | HSV: 216°, 45%, 13%. Copy any format from the conversion table above.

What colors go well with #121821?

The complementary color is HSL(36, 31%, 10%). For a triadic harmony, use hues 216°, 336°, and 96°. For analogous combinations, try hues 186° and 246°. See the Color Harmony section above for complete palettes with previews.

How do I use HSL(216, 31%, 10%) in CSS?

As HSL: color: hsl(216, 31%, 10%); — As HEX: color: #121821; — As RGB: color: rgb(18, 24, 33); — Tailwind CSS: bg-[hsl(216,31%,10%)] — CSS variable: --color-primary: hsl(216, 31%, 10%);