HSL(251, 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(251,30%,10%)]

Color Conversions

Format Value CSS Usage
HSL hsl(251, 30%, 10%) color: hsl(251, 30%, 10%)
HEX #151221 color: #151221
RGB rgb(21, 18, 33) color: rgb(21, 18, 33)
CMYK cmyk(36%, 45%, 0%, 87%) —
HSV hsv(252, 45%, 13%) —
HWB hwb(252 7% 87%) color: hwb(252 7% 87%)
OKLCH oklch(0.1938 0.0301 292.55) color: oklch(0.1938 0.0301 292.55)
Lab lab(6.34 5.45 -9.77) color: lab(6.34 5.45 -9.77)
LCH lch(6.34 11.19 299.15) color: lch(6.34 11.19 299.15)

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 18.42:1
vs Black 1.14:1

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)

#14141D — rgb(20, 20, 29)

Deuteranopia (Green-blind)

#14141D — rgb(20, 20, 29)

Tritanopia (Blue-blind)

#151B1A — rgb(21, 27, 26)

Tints & Shades

Tints (Lighter →)

← Shades (Darker)

Saturation (0% → 100%)

CSS Code Snippets

background

background-color: hsl(251, 30%, 10%);

text

color: hsl(251, 30%, 10%);

border

border: 2px solid hsl(251, 30%, 10%);

gradient light

background: linear-gradient(to right, hsl(251, 30%, 30%), hsl(251, 30%, 10%));

gradient dark

background: linear-gradient(to right, hsl(251, 30%, 10%), hsl(251, 30%, 0%))

hex

background-color: #151221;

tailwind

bg-[hsl(251,30%,10%)]

box shadow

box-shadow: 0 4px 6px -1px hsl(251, 30%, 10%, 0.4);

css variable

--color-primary: hsl(251, 30%, 10%);

Related Colors

#18171C

251,10,10

#110D26

251,50,10

#000000

251,30,0

#3E3663

251,30,30

#121321

236,30,10

#121221

241,30,10

#171221

261,30,10

#181221

266,30,10

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(251, 30%, 10%)?

HEX: #151221 | RGB: rgb(21, 18, 33) | CMYK: 36%, 45%, 0%, 87% | HSV: 252°, 45%, 13%. Copy any format from the conversion table above.

What colors go well with #151221?

The complementary color is HSL(71, 30%, 10%). For a triadic harmony, use hues 251°, 11°, and 131°. For analogous combinations, try hues 221° and 281°. See the Color Harmony section above for complete palettes with previews.

How do I use HSL(251, 30%, 10%) in CSS?

As HSL: color: hsl(251, 30%, 10%); — As HEX: color: #151221; — As RGB: color: rgb(21, 18, 33); — Tailwind CSS: bg-[hsl(251,30%,10%)] — CSS variable: --color-primary: hsl(251, 30%, 10%);