#2800b1

Color #2800b1

A vivid, highly saturated dark blue.

Closest named color Medium Blue #0000cd · ΔE 14.1 Nearest Tailwind class violet-900 #4d179a · ΔE 5.5

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

Conversions

HEX

#2800b1

RGB

rgb(40, 0, 177)

HSL

hsl(253.6, 100%, 34.7%)

HSV / HSB

hsv(253.6, 100%, 69.4%)

CMYK

cmyk(77.4%, 100%, 0%, 30.6%)

LAB

lab(22.39, 60.8, -79.19)

LCH

lch(22.39, 99.84, 307.52)

OKLCH

oklch(35.9%, 0.2289, 273.36)

HWB

hwb(253.6, 0%, 30.6%)

Harmony colors

Complementary

#89b100

Analogous

#0030b1

#2800b1

#8100b1

Triadic

#2800b1

#b12800

#00b128

Split-complementary

#2800b1

#b18100

#30b100

Tetradic

#2800b1

#b10089

#89b100

#00b128

Square

#2800b1

#b10030

#89b100

#00b181

Shades

Color #2800b1 mixed toward black.

#210093

#1b0076

#140058

#0d003b

#07001d

Tints

Color #2800b1 mixed toward white.

#3500e8

#5321ff

#7e58ff

#a990ff

#d4c7ff

Tones

Color #2800b1 mixed toward gray.

#300fa2

#381d93

#402c85

#483b76

#504a67

Accessibility

Aa White text on this color

12.17:1

Aa Black text on this color

1.73:1

White text reads better on this background (12.17:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#1d1c9c · ΔE 4.3

Deuteranopia

#1e2197 · ΔE 5.5

Tritanopia

#278984 · ΔE 44.6

Achromatopsia

#363636 · ΔE 30.8

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

Code

CSS

background-color: #2800b1;

Tailwind (arbitrary value)

bg-[#2800b1]

Related colors

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Slate Blue #6a5acd

Medium Purple #9370db

Navy #000080

Lavender #e6e6fa

Frequently asked questions

#2800b1 (#2800b1) is rgb(40, 0, 177) in RGB.

No, #2800b1 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.

Try it → Generators

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 #2800b1, or check how it holds up for accessibility.

Generate a palette → Check contrast