HSL(237, 45%, 45%)

Blue — Blue color

Adjust Color

Color Information

Color Name

Blue

Color Family

Blue

Warm / Cool

🔵 Cool

Temperature

9000K

CSS Class

bg-[hsl(237,45%,45%)]

Color Conversions

Format Value CSS Usage
HSL hsl(237, 45%, 45%) color: hsl(237, 45%, 45%)
HEX #3F44A6 color: #3F44A6
RGB rgb(63, 68, 166) color: rgb(63, 68, 166)
CMYK cmyk(62%, 59%, 0%, 35%) —
HSV hsv(237, 62%, 65%) —
HWB hwb(237 25% 35%) color: hwb(237 25% 35%)
OKLCH oklch(0.4413 0.1549 275.82) color: oklch(0.4413 0.1549 275.82)
Lab lab(33.86 28.71 -53.62) color: lab(33.86 28.71 -53.62)
LCH lch(33.86 60.82 298.17) color: lch(33.86 60.82 298.17)

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 8.11:1
vs Black 2.59:1

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)

#41418E — rgb(65, 65, 142)

Deuteranopia (Green-blind)

#414189 — rgb(65, 65, 137)

Tritanopia (Blue-blind)

#3F7C77 — rgb(63, 124, 119)

Tints & Shades

Tints (Lighter →)

← Shades (Darker)

Saturation (0% → 100%)

CSS Code Snippets

background

background-color: hsl(237, 45%, 45%);

text

color: hsl(237, 45%, 45%);

border

border: 2px solid hsl(237, 45%, 45%);

gradient light

background: linear-gradient(to right, hsl(237, 45%, 65%), hsl(237, 45%, 45%));

gradient dark

background: linear-gradient(to right, hsl(237, 45%, 45%), hsl(237, 45%, 25%))

hex

background-color: #3F44A6;

tailwind

bg-[hsl(237,45%,45%)]

box shadow

box-shadow: 0 4px 6px -1px hsl(237, 45%, 45%, 0.4);

css variable

--color-primary: hsl(237, 45%, 45%);

Related Colors

#56598F

237,25,45

#2830BD

237,65,45

#23265C

237,45,25

#7E82CE

237,45,65

#3F5EA6

222,45,45

#3F55A6

227,45,45

#4B3FA6

247,45,45

#543FA6

252,45,45

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, 45%, 45%)?

HEX: #3F44A6 | RGB: rgb(63, 68, 166) | CMYK: 62%, 59%, 0%, 35% | HSV: 237°, 62%, 65%. Copy any format from the conversion table above.

What colors go well with #3F44A6?

The complementary color is HSL(57, 45%, 45%). 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, 45%, 45%) in CSS?

As HSL: color: hsl(237, 45%, 45%); — As HEX: color: #3F44A6; — As RGB: color: rgb(63, 68, 166); — Tailwind CSS: bg-[hsl(237,45%,45%)] — CSS variable: --color-primary: hsl(237, 45%, 45%);