#3a5798

Color #3a5798

A moderately saturated medium blue.

Closest named color Dark Slate Blue #483d8b · ΔE 17.45 Nearest Tailwind class sky-800 #00598a · ΔE 8.3

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

Conversions

HEX

#3a5798

RGB

rgb(58, 87, 152)

HSL

hsl(221.5, 44.8%, 41.2%)

HSV / HSB

hsv(221.5, 61.8%, 59.6%)

CMYK

cmyk(61.8%, 42.8%, 0%, 40.4%)

LAB

lab(37.81, 10.38, -38.88)

LCH

lch(37.81, 40.24, 284.95)

OKLCH

oklch(46.7%, 0.1112, 264.43)

HWB

hwb(221.5, 22.7%, 40.4%)

Harmony colors

Complementary

#987b3a

Analogous

#3a8698

#3a5798

#4c3a98

Triadic

#3a5798

#983a57

#57983a

Split-complementary

#3a5798

#984c3a

#86983a

Tetradic

#3a5798

#7b3a98

#987b3a

#57983a

Square

#3a5798

#983a86

#987b3a

#3a984c

Shades

Color #3a5798 mixed toward black.

#30497f

#273a65

#1d2c4c

#131d33

#0a0f19

Tints

Color #3a5798 mixed toward white.

#4a6dba

#6e8ac8

#92a7d6

#b7c4e3

#dbe2f1

Tones

Color #3a5798 mixed toward gray.

#425a90

#4a5d88

#526081

#596379

#616671

Accessibility

Aa White text on this color

7.01:1

Aa Black text on this color

3:1

White text reads better on this background (7.01:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#48498c · ΔE 7.1

Deuteranopia

#474489 · ΔE 8.6

Tritanopia

#3c817e · ΔE 28.2

Achromatopsia

#595959 · ΔE 21.4

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

Code

CSS

background-color: #3a5798;

Tailwind (arbitrary value)

bg-[#3a5798]

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

#3a5798 (#3a5798) is rgb(58, 87, 152) in RGB.

No, #3a5798 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 #3a5798, or check how it holds up for accessibility.

Generate a palette → Check contrast