#28188c

Color #28188c

A vivid, highly saturated dark blue.

Closest named color Navy #000080 · ΔE 9.37 Nearest Tailwind class indigo-900 #312c85 · ΔE 5.2

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Conversions

HEX

#28188c

RGB

rgb(40, 24, 140)

HSL

hsl(248.3, 70.7%, 32.2%)

HSV / HSB

hsv(248.3, 82.9%, 54.9%)

CMYK

cmyk(71.4%, 82.9%, 0%, 45.1%)

LAB

lab(20.03, 43.04, -60.46)

LCH

lch(20.03, 74.21, 305.45)

OKLCH

oklch(33%, 0.176, 276.89)

HWB

hwb(248.3, 9.4%, 45.1%)

Harmony colors

Complementary

#7c8c18

Analogous

#18428c

#28188c

#62188c

Triadic

#28188c

#8c2818

#188c28

Split-complementary

#28188c

#8c6218

#428c18

Tetradic

#28188c

#8c187c

#7c8c18

#188c28

Square

#28188c

#8c1842

#7c8c18

#188c62

Shades

Color #28188c mixed toward black.

#211475

#1b105d

#140c46

#0d082f

#070417

Tints

Color #28188c mixed toward white.

#3621bd

#513add

#7c6be6

#a89dee

#d3cef7

Tones

Color #28188c mixed toward gray.

#2f2282

#362b79

#3d356f

#443f65

#4b485c

Accessibility

Aa White text on this color

13.13:1

Aa Black text on this color

1.6:1

White text reads better on this background (13.13:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#22227c · ΔE 3.9

Deuteranopia

#232478 · ΔE 4.9

Tritanopia

#276d69 · ΔE 37.1

Achromatopsia

#303030 · ΔE 27.9

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

Code

CSS

background-color: #28188c;

Tailwind (arbitrary value)

bg-[#28188c]

Related colors

Slate Blue #6a5acd

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#28188c (#28188c) is rgb(40, 24, 140) in RGB.

No, #28188c is not web-safe. The nearest web-safe colors are among its tones and shades below.

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 #28188c, or check how it holds up for accessibility.

Generate a palette → Check contrast