HSL(237, 75%, 40%)

Blue — Blue color

Adjust Color

Color Information

Color Name

Blue

Color Family

Blue

Warm / Cool

🔵 Cool

Temperature

9000K

CSS Class

bg-[hsl(237,75%,40%)]

Color Conversions

Format Value CSS Usage
HSL hsl(237, 75%, 40%) color: hsl(237, 75%, 40%)
HEX #1A21B3 color: #1A21B3
RGB rgb(26, 33, 179) color: rgb(26, 33, 179)
CMYK cmyk(85%, 82%, 0%, 30%) —
HSV hsv(237, 85%, 70%) —
HWB hwb(237 11% 30%) color: hwb(237 11% 30%)
OKLCH oklch(0.3789 0.2183 268.14) color: oklch(0.3789 0.2183 268.14)
Lab lab(25.45 50.13 -75.32) color: lab(25.45 50.13 -75.32)
LCH lch(25.45 90.48 303.65) color: lch(25.45 90.48 303.65)

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 10.98:1
vs Black 1.91:1

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)

#1D1D90 — rgb(29, 29, 144)

Deuteranopia (Green-blind)

#1D1C87 — rgb(29, 28, 135)

Tritanopia (Blue-blind)

#1A746E — rgb(26, 116, 110)

Tints & Shades

Tints (Lighter →)

← Shades (Darker)

Saturation (0% → 100%)

CSS Code Snippets

background

background-color: hsl(237, 75%, 40%);

text

color: hsl(237, 75%, 40%);

border

border: 2px solid hsl(237, 75%, 40%);

gradient light

background: linear-gradient(to right, hsl(237, 75%, 60%), hsl(237, 75%, 40%));

gradient dark

background: linear-gradient(to right, hsl(237, 75%, 40%), hsl(237, 75%, 20%))

hex

background-color: #1A21B3;

tailwind

bg-[hsl(237,75%,40%)]

box shadow

box-shadow: 0 4px 6px -1px hsl(237, 75%, 40%, 0.4);

css variable

--color-primary: hsl(237, 75%, 40%);

Related Colors

#2E349E

237,55,40

#050FC7

237,95,40

#0D1159

237,75,20

#4D54E6

237,75,60

#1A47B3

222,75,40

#1A3BB3

227,75,40

#2B1AB3

247,75,40

#381AB3

252,75,40

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, 75%, 40%)?

HEX: #1A21B3 | RGB: rgb(26, 33, 179) | CMYK: 85%, 82%, 0%, 30% | HSV: 237°, 85%, 70%. Copy any format from the conversion table above.

What colors go well with #1A21B3?

The complementary color is HSL(57, 75%, 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, 75%, 40%) in CSS?

As HSL: color: hsl(237, 75%, 40%); — As HEX: color: #1A21B3; — As RGB: color: rgb(26, 33, 179); — Tailwind CSS: bg-[hsl(237,75%,40%)] — CSS variable: --color-primary: hsl(237, 75%, 40%);