BLUE

Medium Blue

#0000CD

Conversions

HEX#0000CD

RGBrgb(0, 0, 205)

HSLhsl(240, 100%, 40%)

HSVhsv(240, 100%, 80%)

CMYKcmyk(100%, 100%, 0%, 20%)

Copy CSS

color: #0000cd;
/* rgb  */ color: rgb(0, 0, 205);
/* hsl  */ color: hsl(240, 100%, 40%);

Contrast

On whitePass · 11.16 : 1

On ink blackFail · 1.71 : 1

Shades

Tints

Pairings

About Medium Blue

Medium Blue is the hex color #0000CD, which translates to rgb(0, 0, 205) in RGB and hsl(240, 100%, 40%) in HSL. On the color wheel it sits at 240 degrees, with a saturation of 100 percent and a lightness of 40 percent. Its OKLCH chroma of 0.266 is high, so Medium Blue is one of the more vivid blue tones here and is easy to overuse at large sizes.

How Medium Blue compares

Medium Blue is exactly the CSS keyword mediumblue, so you can write the keyword instead of the hex and get an identical result. In the Tailwind CSS 4.3.1 palette the nearest token is violet-700 (#7008E7), at a distance of 15.4. Inside this library the closest neighbour is Electric Violet at 21.0. Sorted by lightness, Medium Blue is number 9 of the 30 blue colors here.

Text on Medium Blue

2 of the five common text colors below clear WCAG AA for normal text on Medium Blue, led by White at 11.16:1. The ratios are computed with the WCAG relative luminance formula, the same one the contrast checker uses, which opens with Medium Blue already loaded as the background.

Contrast of common text colors on Medium Blue. AA normal text needs 4.5:1, AA large text and non-text elements need 3:1, AAA normal text needs 7:1.
Text color	Ratio	AA normal	AA large	AAA normal
White #FFFFFF	11.16:1	Pass	Pass	Pass
Ink black #0F0F12	1.71:1	Fail	Fail	Fail
Mid grey #6B7280	2.31:1	Fail	Fail	Fail
Dark grey #374151	1.08:1	Fail	Fail	Fail
Light grey #E5E7EB	9.01:1	Pass	Pass	Pass

Building a palette around Medium Blue

The pairings above give you three classic starting points. The complementary color sits opposite on the wheel and works well as an accent that draws the eye. The analogous colors sit right beside Medium Blue for calmer, harmonious combinations. The triadic pair spaces three hues evenly for a balanced, energetic palette. Open any swatch to explore it as its own color.

Full values for Medium Blue

Format	Value
HEX	#0000CD
RGB	rgb(0, 0, 205)
HSL	hsl(240, 100%, 40%)
HSV	hsv(240, 100%, 80%)
CMYK	cmyk(100%, 100%, 0%, 20%)
OKLCH	oklch(38.35% 0.2657 264.05)
CIELAB	lab(24.97 67.18 -91.50)

Use Medium Blue in a tool

Nearby colors

Last updated 5 August 2026 by FusionStudios. Every value on this page is computed by the same functions the tools use. How this is calculated.