HSL(237, 40%, 40%)

Blue — Blue color

Adjust Color

Color Information

Color Name

Blue

Color Family

Blue

Warm / Cool

🔵 Cool

Temperature

9000K

CSS Class

bg-[hsl(237,40%,40%)]

Color Conversions

Format Value CSS Usage
HSL hsl(237, 40%, 40%) color: hsl(237, 40%, 40%)
HEX #3D418F color: #3D418F
RGB rgb(61, 65, 143) color: rgb(61, 65, 143)
CMYK cmyk(57%, 55%, 0%, 44%) —
HSV hsv(237, 57%, 56%) —
HWB hwb(237 24% 44%) color: hwb(237 24% 44%)
OKLCH oklch(0.4161 0.1267 277.16) color: oklch(0.4161 0.1267 277.16)
Lab lab(31.24 22.31 -43.92) color: lab(31.24 22.31 -43.92)
LCH lch(31.24 49.26 296.93) color: lch(31.24 49.26 296.93)

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 8.93:1
vs Black 2.35:1

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)

#3F3F7C — rgb(63, 63, 124)

Deuteranopia (Green-blind)

#3F3E78 — rgb(63, 62, 120)

Tritanopia (Blue-blind)

#3D6D6A — rgb(61, 109, 106)

Tints & Shades

Tints (Lighter →)

← Shades (Darker)

Saturation (0% → 100%)

CSS Code Snippets

background

background-color: hsl(237, 40%, 40%);

text

color: hsl(237, 40%, 40%);

border

border: 2px solid hsl(237, 40%, 40%);

gradient light

background: linear-gradient(to right, hsl(237, 40%, 60%), hsl(237, 40%, 40%));

gradient dark

background: linear-gradient(to right, hsl(237, 40%, 40%), hsl(237, 40%, 20%))

hex

background-color: #3D418F;

tailwind

bg-[hsl(237,40%,40%)]

box shadow

box-shadow: 0 4px 6px -1px hsl(237, 40%, 40%, 0.4);

css variable

--color-primary: hsl(237, 40%, 40%);

Related Colors

#52547A

237,20,40

#292FA3

237,60,40

#1F2147

237,40,20

#7074C2

237,40,60

#3D568F

222,40,40

#3D4F8F

227,40,40

#473D8F

247,40,40

#4E3D8F

252,40,40

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, 40%, 40%)?

HEX: #3D418F | RGB: rgb(61, 65, 143) | CMYK: 57%, 55%, 0%, 44% | HSV: 237°, 57%, 56%. Copy any format from the conversion table above.

What colors go well with #3D418F?

The complementary color is HSL(57, 40%, 40%). 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, 40%, 40%) in CSS?

As HSL: color: hsl(237, 40%, 40%); — As HEX: color: #3D418F; — As RGB: color: rgb(61, 65, 143); — Tailwind CSS: bg-[hsl(237,40%,40%)] — CSS variable: --color-primary: hsl(237, 40%, 40%);