HSL(231, 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(231,31%,10%)]

Color Conversions

Format Value CSS Usage
HSL hsl(231, 31%, 10%) color: hsl(231, 31%, 10%)
HEX #121421 color: #121421
RGB rgb(18, 20, 33) color: rgb(18, 20, 33)
CMYK cmyk(45%, 39%, 0%, 87%) —
HSV hsv(232, 45%, 13%) —
HWB hwb(232 7% 87%) color: hwb(232 7% 87%)
OKLCH oklch(0.1959 0.0264 276.95) color: oklch(0.1959 0.0264 276.95)
Lab lab(6.67 2.95 -9.28) color: lab(6.67 2.95 -9.28)
LCH lch(6.67 9.74 287.63) color: lch(6.67 9.74 287.63)

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 18.3:1
vs Black 1.15:1

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)

#13131E — rgb(19, 19, 30)

Deuteranopia (Green-blind)

#13131D — rgb(19, 19, 29)

Tritanopia (Blue-blind)

#121B1B — rgb(18, 27, 27)

Tints & Shades

Tints (Lighter →)

← Shades (Darker)

Saturation (0% → 100%)

CSS Code Snippets

background

background-color: hsl(231, 31%, 10%);

text

color: hsl(231, 31%, 10%);

border

border: 2px solid hsl(231, 31%, 10%);

gradient light

background: linear-gradient(to right, hsl(231, 31%, 30%), hsl(231, 31%, 10%));

gradient dark

background: linear-gradient(to right, hsl(231, 31%, 10%), hsl(231, 31%, 0%))

hex

background-color: #121421;

tailwind

bg-[hsl(231,31%,10%)]

box shadow

box-shadow: 0 4px 6px -1px hsl(231, 31%, 10%, 0.4);

css variable

--color-primary: hsl(231, 31%, 10%);

Related Colors

#17181C

231,11,10

#0C1027

231,51,10

#000000

231,31,0

#353C64

231,31,30

#121821

216,31,10

#121721

221,31,10

#121221

241,31,10

#131221

246,31,10

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(231, 31%, 10%)?

HEX: #121421 | RGB: rgb(18, 20, 33) | CMYK: 45%, 39%, 0%, 87% | HSV: 232°, 45%, 13%. Copy any format from the conversion table above.

What colors go well with #121421?

The complementary color is HSL(51, 31%, 10%). For a triadic harmony, use hues 231°, 351°, and 111°. For analogous combinations, try hues 201° and 261°. See the Color Harmony section above for complete palettes with previews.

How do I use HSL(231, 31%, 10%) in CSS?

As HSL: color: hsl(231, 31%, 10%); — As HEX: color: #121421; — As RGB: color: rgb(18, 20, 33); — Tailwind CSS: bg-[hsl(231,31%,10%)] — CSS variable: --color-primary: hsl(231, 31%, 10%);