#2a57ac

Color #2a57ac

A moderately saturated medium blue.

Closest named color Dark Slate Blue #483d8b · ΔE 15.38 Nearest Tailwind class sky-800 #00598a · ΔE 7.8

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

Conversions

HEX

#2a57ac

RGB

rgb(42, 87, 172)

HSL

hsl(219.2, 60.7%, 42%)

HSV / HSB

hsv(219.2, 75.6%, 67.5%)

CMYK

cmyk(75.6%, 49.4%, 0%, 32.5%)

LAB

lab(38.35, 15.21, -49.99)

LCH

lch(38.35, 52.25, 286.92)

OKLCH

oklch(47.4%, 0.1451, 261.64)

HWB

hwb(219.2, 16.5%, 32.5%)

Harmony colors

Complementary

#ac7f2a

Analogous

#2a98ac

#2a57ac

#3e2aac

Triadic

#2a57ac

#ac2a57

#57ac2a

Split-complementary

#2a57ac

#ac3e2a

#98ac2a

Tetradic

#2a57ac

#7f2aac

#ac7f2a

#57ac2a

Square

#2a57ac

#ac2a98

#ac7f2a

#2aac3e

Shades

Color #2a57ac mixed toward black.

#23498f

#1c3a73

#152c56

#0e1d39

#070f1d

Tints

Color #2a57ac mixed toward white.

#396dcf

#618ad8

#88a7e2

#b0c5ec

#d7e2f5

Tones

Color #2a57ac mixed toward gray.

#355aa1

#405e96

#4b618c

#556481

#606876

Accessibility

Aa White text on this color

6.87:1

Aa Black text on this color

3.06:1

White text reads better on this background (6.87:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#42429d · ΔE 9.2

Deuteranopia

#3f3c99 · ΔE 10.7

Tritanopia

#2d8f8c · ΔE 33.1

Achromatopsia

#5a5a5a · ΔE 24.1

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

Code

CSS

background-color: #2a57ac;

Tailwind (arbitrary value)

bg-[#2a57ac]

Related colors

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Royal Blue #4169e1

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Frequently asked questions

#2a57ac (#2a57ac) is rgb(42, 87, 172) in RGB.

No, #2a57ac 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 #2a57ac, or check how it holds up for accessibility.

Generate a palette → Check contrast