HSL(237, 57%, 16%)

Blue — Blue color

Adjust Color

Color Information

Color Name

Blue

Color Family

Blue

Warm / Cool

🔵 Cool

Temperature

9000K

CSS Class

bg-[hsl(237,57%,16%)]

Color Conversions

Format Value CSS Usage
HSL hsl(237, 57%, 16%) color: hsl(237, 57%, 16%)
HEX #121440 color: #121440
RGB rgb(18, 20, 64) color: rgb(18, 20, 64)
CMYK cmyk(72%, 69%, 0%, 75%) —
HSV hsv(237, 72%, 25%) —
HWB hwb(237 7% 75%) color: hwb(237 7% 75%)
OKLCH oklch(0.2216 0.0821 275.45) color: oklch(0.2216 0.0821 275.45)
Lab lab(8.98 15.6 -28.39) color: lab(8.98 15.6 -28.39)
LCH lch(8.98 32.39 298.79) color: lch(8.98 32.39 298.79)

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 17.5:1
vs Black 1.2:1

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)

#131335 — rgb(19, 19, 53)

Deuteranopia (Green-blind)

#131333 — rgb(19, 19, 51)

Tritanopia (Blue-blind)

#122D2B — rgb(18, 45, 43)

Tints & Shades

Tints (Lighter →)

← Shades (Darker)

Saturation (0% → 100%)

CSS Code Snippets

background

background-color: hsl(237, 57%, 16%);

text

color: hsl(237, 57%, 16%);

border

border: 2px solid hsl(237, 57%, 16%);

gradient light

background: linear-gradient(to right, hsl(237, 57%, 36%), hsl(237, 57%, 16%));

gradient dark

background: linear-gradient(to right, hsl(237, 57%, 16%), hsl(237, 57%, 0%))

hex

background-color: #121440;

tailwind

bg-[hsl(237,57%,16%)]

box shadow

box-shadow: 0 4px 6px -1px hsl(237, 57%, 16%, 0.4);

css variable

--color-primary: hsl(237, 57%, 16%);

Related Colors

#1A1B38

237,37,16

#090D48

237,77,16

#000000

237,57,0

#272D90

237,57,36

#121F40

222,57,16

#121C40

227,57,16

#171240

247,57,16

#1B1240

252,57,16

Use Cases for Blue

Corporate branding Trust signals Tech products Social media Primary buttons

Frequently Asked Questions

What are all the color codes for HSL(237, 57%, 16%)?

HEX: #121440 | RGB: rgb(18, 20, 64) | CMYK: 72%, 69%, 0%, 75% | HSV: 237°, 72%, 25%. Copy any format from the conversion table above.

What colors go well with #121440?

The complementary color is HSL(57, 57%, 16%). For a triadic harmony, use hues 237°, 357°, and 117°. For analogous combinations, try hues 207° and 267°. See the Color Harmony section above for complete palettes with previews.

How do I use HSL(237, 57%, 16%) in CSS?

As HSL: color: hsl(237, 57%, 16%); — As HEX: color: #121440; — As RGB: color: rgb(18, 20, 64); — Tailwind CSS: bg-[hsl(237,57%,16%)] — CSS variable: --color-primary: hsl(237, 57%, 16%);