#212d40

Color #212d40

A muted very dark blue.

Closest named color Charcoal #36454f · ΔE 12.36 Nearest Tailwind class slate-800 #1d293d · ΔE 1.4

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Conversions

HEX

#212d40

RGB

rgb(33, 45, 64)

HSL

hsl(216.8, 32%, 19%)

HSV / HSB

hsv(216.8, 48.4%, 25.1%)

CMYK

cmyk(48.4%, 29.7%, 0%, 74.9%)

LAB

lab(18.23, 0.96, -13.61)

LCH

lch(18.23, 13.64, 274.03)

OKLCH

oklch(29.5%, 0.0386, 259.39)

HWB

hwb(216.8, 12.9%, 74.9%)

Harmony colors

Complementary

#403421

Analogous

#213c40

#212d40

#242140

Triadic

#212d40

#40212d

#2d4021

Split-complementary

#212d40

#402421

#3c4021

Tetradic

#212d40

#342140

#403421

#2d4021

Square

#212d40

#40213c

#403421

#214024

Shades

Color #212d40 mixed toward black.

#1b2535

#161e2b

#101620

#0b0f15

#05070b

Tints

Color #212d40 mixed toward white.

#384d6d

#506d9b

#7790b9

#a4b5d0

#d2dae8

Tones

Color #212d40 mixed toward gray.

#242e3d

#262e3b

#292f38

#2b2f36

#2e3033

Accessibility

Aa White text on this color

13.87:1

Aa Black text on this color

1.51:1

White text reads better on this background (13.87:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#27273c · ΔE 6.4

Deuteranopia

#26253b · ΔE 7.2

Tritanopia

#223938 · ΔE 14.5

Achromatopsia

#2c2c2c · ΔE 10.5

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

Code

CSS

background-color: #212d40;

Tailwind (arbitrary value)

bg-[#212d40]

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

#212d40 (#212d40) is rgb(33, 45, 64) in RGB.

No, #212d40 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 #212d40, or check how it holds up for accessibility.

Generate a palette → Check contrast