#333640

Color #333640

A nearly neutral, gray-leaning dark blue.

Closest named color Charcoal #36454f · ΔE 7.38 Nearest Tailwind class zinc-700 #3f3f46 · ΔE 3.7

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

Conversions

HEX

#333640

RGB

rgb(51, 54, 64)

HSL

hsl(226.2, 11.3%, 22.5%)

HSV / HSB

hsv(226.2, 20.3%, 25.1%)

CMYK

cmyk(20.3%, 15.6%, 0%, 74.9%)

LAB

lab(22.7, 1.27, -6.65)

LCH

lch(22.7, 6.77, 280.81)

OKLCH

oklch(33.4%, 0.0181, 272.21)

HWB

hwb(226.2, 20%, 74.9%)

Harmony colors

Complementary

#403d33

Analogous

#333c40

#333640

#363340

Triadic

#333640

#403336

#364033

Split-complementary

#333640

#403633

#3c4033

Tetradic

#333640

#3d3340

#403d33

#364033

Square

#333640

#40333c

#403d33

#334036

Shades

Color #333640 mixed toward black.

#2a2d35

#22242b

#191b20

#111215

#08090b

Tints

Color #333640 mixed toward white.

#505565

#6d7489

#9196a7

#b6b9c5

#dadce2

Tones

Color #333640 mixed toward gray.

#34363f

#35373e

#36383d

#37383c

#38393a

Accessibility

Aa White text on this color

12.05:1

Aa Black text on this color

1.74:1

White text reads better on this background (12.05:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#34343e · ΔE 1.8

Deuteranopia

#34343d · ΔE 1.7

Tritanopia

#333c3b · ΔE 8.7

Achromatopsia

#363636 · ΔE 6

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

Code

CSS

background-color: #333640;

Tailwind (arbitrary value)

bg-[#333640]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#333640 (#333640) is rgb(51, 54, 64) in RGB.

No, #333640 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.

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 #333640, or check how it holds up for accessibility.

Generate a palette → Check contrast