#28487b

Color #28487b

A moderately saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 22.19 Nearest Tailwind class blue-900 #1c398e · ΔE 6.3

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Conversions

HEX

#28487b

RGB

rgb(40, 72, 123)

HSL

hsl(216.9, 50.9%, 32%)

HSV / HSB

hsv(216.9, 67.5%, 48.2%)

CMYK

cmyk(67.5%, 41.5%, 0%, 51.8%)

LAB

lab(30.68, 6.03, -32.52)

LCH

lch(30.68, 33.07, 280.5)

OKLCH

oklch(40.4%, 0.0942, 259.36)

HWB

hwb(216.9, 15.7%, 51.8%)

Harmony colors

Complementary

#7b5b28

Analogous

#28727b

#28487b

#32287b

Triadic

#28487b

#7b2848

#487b28

Split-complementary

#28487b

#7b3228

#727b28

Tetradic

#28487b

#5b287b

#7b5b28

#487b28

Square

#28487b

#7b2872

#7b5b28

#287b32

Shades

Color #28487b mixed toward black.

#213c67

#1b3052

#14243e

#0d1829

#070c15

Tints

Color #28487b mixed toward white.

#3662a7

#517ec6

#7c9ed4

#a8bee3

#d3dff1

Tones

Color #28487b mixed toward gray.

#2f4a74

#364b6d

#3d4d66

#444e5f

#4b5059

Accessibility

Aa White text on this color

9.12:1

Aa Black text on this color

2.3:1

White text reads better on this background (9.12:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#383971 · ΔE 8

Deuteranopia

#37346f · ΔE 9.5

Tritanopia

#2a6967 · ΔE 24.8

Achromatopsia

#484848 · ΔE 19.1

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

Code

CSS

background-color: #28487b;

Tailwind (arbitrary value)

bg-[#28487b]

Related colors

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Royal Blue #4169e1

Frequently asked questions

#28487b (#28487b) is rgb(40, 72, 123) in RGB.

No, #28487b 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 #28487b, or check how it holds up for accessibility.

Generate a palette → Check contrast