#517bcd

Color #517bcd

A moderately saturated medium blue.

Closest named color Cornflower Blue #6495ed · ΔE 10.12 Nearest Tailwind class blue-500 #2b7fff · ΔE 5.5

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

Conversions

HEX

#517bcd

RGB

rgb(81, 123, 205)

HSL

hsl(219.7, 55.4%, 56.1%)

HSV / HSB

hsv(219.7, 60.5%, 80.4%)

CMYK

cmyk(60.5%, 40%, 0%, 19.6%)

LAB

lab(52.2, 10.65, -46.87)

LCH

lch(52.2, 48.06, 282.8)

OKLCH

oklch(59.1%, 0.1343, 262.52)

HWB

hwb(219.7, 31.8%, 19.6%)

Harmony colors

Complementary

#cda351

Analogous

#51b9cd

#517bcd

#6551cd

Triadic

#517bcd

#cd517b

#7bcd51

Split-complementary

#517bcd

#cd6551

#b9cd51

Tetradic

#517bcd

#a351cd

#cda351

#7bcd51

Square

#517bcd

#cd51b9

#cda351

#51cd65

Shades

Color #517bcd mixed toward black.

#3562b9

#2b4e94

#203b6f

#15274a

#0b1425

Tints

Color #517bcd mixed toward white.

#6e91d5

#8ba7de

#a8bde6

#c5d3ee

#e2e9f7

Tones

Color #517bcd mixed toward gray.

#5b7ec3

#6682b8

#7085ae

#7a88a4

#858c99

Accessibility

Aa White text on this color

4.15:1

Aa Black text on this color

5.06:1

Black text reads better on this background (5.06:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#6666bd · ΔE 10.2

Deuteranopia

#6360b9 · ΔE 11.9

Tritanopia

#54b0ac · ΔE 30.7

Achromatopsia

#7c7c7c · ΔE 23.2

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

Code

CSS

background-color: #517bcd;

Tailwind (arbitrary value)

bg-[#517bcd]

Related colors

Cornflower Blue #6495ed

Royal Blue #4169e1

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Frequently asked questions

#517bcd (#517bcd) is rgb(81, 123, 205) in RGB.

No, #517bcd 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 #517bcd, or check how it holds up for accessibility.

Generate a palette → Check contrast