#2100a0

Color #2100a0

A vivid, highly saturated dark blue.

Closest named color Dark Blue #00008b · ΔE 9.14 Nearest Tailwind class violet-900 #4d179a · ΔE 5.8

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

Conversions

HEX

#2100a0

RGB

rgb(33, 0, 160)

HSL

hsl(252.4, 100%, 31.4%)

HSV / HSB

hsv(252.4, 100%, 62.7%)

CMYK

cmyk(79.4%, 100%, 0%, 37.3%)

LAB

lab(19.48, 56.37, -73.76)

LCH

lch(19.48, 92.83, 307.39)

OKLCH

oklch(33.2%, 0.2131, 272.47)

HWB

hwb(252.4, 0%, 37.3%)

Harmony colors

Complementary

#7fa000

Analogous

#002fa0

#2100a0

#7100a0

Triadic

#2100a0

#a02100

#00a021

Split-complementary

#2100a0

#a07100

#2fa000

Tetradic

#2100a0

#a0007f

#7fa000

#00a021

Square

#2100a0

#a0002f

#7fa000

#00a071

Shades

Color #2100a0 mixed toward black.

#1c0085

#16006b

#110050

#0b0035

#06001b

Tints

Color #2100a0 mixed toward white.

#2d00da

#4616ff

#7450ff

#a28aff

#d1c5ff

Tones

Color #2100a0 mixed toward gray.

#290d93

#311b85

#392878

#40356b

#48435d

Accessibility

Aa White text on this color

13.36:1

Aa Black text on this color

1.57:1

White text reads better on this background (13.36:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#17178d · ΔE 4

Deuteranopia

#191b88 · ΔE 5.1

Tritanopia

#207b77 · ΔE 41.9

Achromatopsia

#2f2f2f · ΔE 30.1

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

Code

CSS

background-color: #2100a0;

Tailwind (arbitrary value)

bg-[#2100a0]

Related colors

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Slate Blue #6a5acd

Medium Purple #9370db

Navy #000080

Lavender #e6e6fa

Frequently asked questions

#2100a0 (#2100a0) is rgb(33, 0, 160) in RGB.

No, #2100a0 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.

Try it → Accessibility

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.

Try it →

Build something with this color

Generate a full palette from #2100a0, or check how it holds up for accessibility.

Generate a palette → Check contrast