#4040ff

Color #4040ff

A vivid, highly saturated light blue.

Closest named color Medium Blue #0000cd · ΔE 17.6 Nearest Tailwind class indigo-600 #4f39f6 · ΔE 2.2

Open in Palette generator Color wheel Color mixer Contrast checker Blindness simulator Gradient

Conversions

HEX

#4040ff

RGB

rgb(64, 64, 255)

HSL

hsl(240, 100%, 62.5%)

HSV / HSB

hsv(240, 74.9%, 100%)

CMYK

cmyk(74.9%, 74.9%, 0%, 0%)

LAB

lab(41.18, 60.51, -93.03)

LCH

lch(41.18, 110.98, 303.04)

OKLCH

oklch(51.9%, 0.2695, 271.94)

HWB

hwb(240, 25.1%, 0%)

Harmony colors

Complementary

#ffff40

Analogous

#409fff

#4040ff

#9f40ff

Triadic

#4040ff

#ff4040

#40ff40

Split-complementary

#4040ff

#ff9f40

#9fff40

Tetradic

#4040ff

#ff40ff

#ffff40

#40ff40

Square

#4040ff

#ff409f

#ffff40

#40ff9f

Shades

Color #4040ff mixed toward black.

#0b0bff

#0000d5

#00009f

#00006a

#000035

Tints

Color #4040ff mixed toward white.

#6060ff

#8080ff

#9f9fff

#bfbfff

#dfdfff

Tones

Color #4040ff mixed toward gray.

#5050ef

#6060df

#7070cf

#8080bf

#8f8faf

Accessibility

Aa White text on this color

6.18:1

Aa Black text on this color

3.4:1

White text reads better on this background (6.18:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#4040e3 · ΔE 3.4

Deuteranopia

#4040dc · ΔE 4.3

Tritanopia

#40cac4 · ΔE 49.9

Achromatopsia

#616161 · ΔE 31.7

Left half is the original, right half is the simulated appearance. See all 8 vision types →

Code

CSS

background-color: #4040ff;

Tailwind (arbitrary value)

bg-[#4040ff]

Related colors

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Medium Blue #0000cd

Frequently asked questions

#4040ff (#4040ff) is rgb(64, 64, 255) in RGB.

No, #4040ff is not one of the 216 web-safe colors — for that, every RGB channel would have to be a multiple of 51.

Related tools

Colors

HEX to RGB Converter

Convert any HEX color code to its RGB and HSL equivalents, live, with copy-to-clipboard values.

Try it → Accessibility

Contrast Checker

Check the WCAG contrast ratio between any two colors, live, with AA/AAA pass-fail results.

Try it → Generators

Palette Generator

Generate complementary, analogous, triadic, split-complementary, tetradic, square, and monochromatic palettes from any base color.

Try it →

Build something with this color

Generate a full palette from #4040ff, or check how it holds up for accessibility.

Generate a palette → Check contrast