#3f00cf

Color #3f00cf

A vivid, highly saturated medium blue.

Closest named color Medium Blue #0000cd · ΔE 5.76 Nearest Tailwind class violet-800 #5d0ec0 · ΔE 3.8

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

Conversions

HEX

#3f00cf

RGB

rgb(63, 0, 207)

HSL

hsl(258.3, 100%, 40.6%)

HSV / HSB

hsv(258.3, 100%, 81.2%)

CMYK

cmyk(69.6%, 100%, 0%, 18.8%)

LAB

lab(28.28, 68.8, -87.07)

LCH

lch(28.28, 110.97, 308.31)

OKLCH

oklch(41.4%, 0.2538, 278.32)

HWB

hwb(258.3, 0%, 18.8%)

Harmony colors

Complementary

#90cf00

Analogous

#0028cf

#3f00cf

#a700cf

Triadic

#3f00cf

#cf3f00

#00cf3f

Split-complementary

#3f00cf

#cfa700

#28cf00

Tetradic

#3f00cf

#cf0090

#90cf00

#00cf3f

Square

#3f00cf

#cf0028

#90cf00

#00cfa7

Shades

Color #3f00cf mixed toward black.

#3500ad

#2a008a

#200068

#150045

#0b0023

Tints

Color #3f00cf mixed toward white.

#5003ff

#7335ff

#9668ff

#b99aff

#dccdff

Tones

Color #3f00cf mixed toward gray.

#4611be

#4d23ad

#53349b

#5a458a

#615679

Accessibility

Aa White text on this color

9.94:1

Aa Black text on this color

2.11:1

White text reads better on this background (9.94:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#2f2eb7 · ΔE 6.2

Deuteranopia

#3134b0 · ΔE 7.9

Tritanopia

#3da09b · ΔE 48.2

Achromatopsia

#434343 · ΔE 31.7

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

Code

CSS

background-color: #3f00cf;

Tailwind (arbitrary value)

bg-[#3f00cf]

Related colors

Medium Purple #9370db

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Slate Blue #6a5acd

Rebecca Purple #663399

Blue Violet #8a2be2

Frequently asked questions

#3f00cf (#3f00cf) is rgb(63, 0, 207) in RGB.

No, #3f00cf is not web-safe. The nearest web-safe colors are among its tones and shades below.

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.

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Build something with this color

Generate a full palette from #3f00cf, or check how it holds up for accessibility.

Generate a palette → Check contrast