#513fd1

Color #513fd1

A moderately saturated medium blue.

Closest named color Medium Slate Blue #7b68ee · ΔE 17.85 Nearest Tailwind class indigo-700 #432dd7 · ΔE 4

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Conversions

HEX

#513fd1

RGB

rgb(81, 63, 209)

HSL

hsl(247.4, 61.3%, 53.3%)

HSV / HSB

hsv(247.4, 69.9%, 82%)

CMYK

cmyk(61.2%, 69.9%, 0%, 18%)

LAB

lab(37.67, 48.56, -72.64)

LCH

lch(37.67, 87.38, 303.76)

OKLCH

oklch(48.4%, 0.2129, 280.44)

HWB

hwb(247.4, 24.7%, 18%)

Harmony colors

Complementary

#bfd13f

Analogous

#3f76d1

#513fd1

#9a3fd1

Triadic

#513fd1

#d1513f

#3fd151

Split-complementary

#513fd1

#d19a3f

#76d13f

Tetradic

#513fd1

#d13fbf

#bfd13f

#3fd151

Square

#513fd1

#d13f76

#bfd13f

#3fd19a

Shades

Color #513fd1 mixed toward black.

#3d2cb7

#312392

#251a6e

#181249

#0c0925

Tints

Color #513fd1 mixed toward white.

#6e5fd9

#8b7fe0

#a89fe8

#c5bff0

#e2dff7

Tones

Color #513fd1 mixed toward gray.

#5a4bc5

#6357b9

#6c63ac

#7670a0

#7f7c94

Accessibility

Aa White text on this color

7.04:1

Aa Black text on this color

2.98:1

White text reads better on this background (7.04:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#4a4abb · ΔE 4.5

Deuteranopia

#4b4cb5 · ΔE 5.5

Tritanopia

#50a6a1 · ΔE 43.5

Achromatopsia

#595959 · ΔE 29.5

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

Code

CSS

background-color: #513fd1;

Tailwind (arbitrary value)

bg-[#513fd1]

Related colors

Slate Blue #6a5acd

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#513fd1 (#513fd1) is rgb(81, 63, 209) in RGB.

No, #513fd1 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.

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Contrast Checker

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

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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 #513fd1, or check how it holds up for accessibility.

Generate a palette → Check contrast