What color is #3B3D40?

#3B3D40 is #3B3D40 (59, 61, 64 in RGB; hsl(216, 4%, 24%)). It sits in the grey family. Contrast is 10.89:1 on white and 1.93:1 on black.

Is #3B3D40 accessible for text?

Yes for normal text on white at 10.89:1 (WCAG AA). Still verify large and small text in a contrast checker before shipping.

How do I use #3B3D40 in CSS?

Use #3B3D40, color: #3b3d40;, or a custom property like --color-3b3d40: #3b3d40;. Nearest Tailwind-style token approximation: neutral-700. Confirm contrast pairs against WCAG before production.

Color brief · Grey

#3B3D40 (#3B3D40) — practical notes

#3B3D40 (#3b3d40) sits in the grey family at about 216° hue, 4% saturation, and 24% lightness. Contrast is 10.89:1 on white and 1.93:1 on black, so white labels read more clearly on the swatch itself. Nearest Tailwind token: neutral-700 (approximation unless the hex is an official scale stop).

supporting UI accents
text or icons on a white canvas

On a black or near-black UI, #3b3d40 is 1.93:1. Prefer it as a fill, border, or large heading rather than 16px copy.

Low saturation makes this easy to overuse as a neutral. Keep one chromatic accent elsewhere so the interface does not go muddy.

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Specs & accessibility references: W3C WCAG 2.1 contrast minimum · MDN CSS color values · CSS Color Module Level 4 · WebAIM contrast guide.

COLOR EXPLORER

THE ORIGINAL SWATCH#3B3D40

100% opacity · sRGB

YOUR NEXT GREAT ACCENT

#3B3D40

Explore the codes, find a readable pairing, and see how this color feels in a real design.

grey family Calculated from HEX

HEX#3B3D40

RGBrgb(59, 61, 64)

HSLhsl(216, 4%, 24%)

PUT IT INTO PRACTICE

A color is only half the story.

Try it with another color before you commit.

Open full contrast checker

MAKE ROOM FOR SOMETHING GOOD

A little color. A whole lot of possibility.

Selected text: #3B3D40

Preview textText size 24px

CONTRAST RATIO10.89:1

AA · normal text: Pass
AA · large text: Pass
AAA · normal text: Pass

Normal text: AA 4.5:1, AAA 7:1. Large text: AA 3:1 (24px regular or about 19px bold).

Against white10.89:1

Against black1.93:1

Results use the exact pair, at full opacity. WCAG contrast guidance ↗

A color worth keeping? Save it above or share it.

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Color codes

HEX

#3b3d40

RGB

rgb(59, 61, 64)

HSL

hsl(216, 4%, 24%)

OKLCH

oklch(0.3592 0.0058 258.11)

CMYK

cmyk(8%, 5%, 0%, 75%)

CSS variable

--color-3b3d40: #3b3d40;

CMYK is an approximate reference; print output depends on the color profile. HSV and CMYK are not CSS color functions.

OKLCH

css

:root {
  --color3b3d40-1: #3b3d40;
}

Design systems

Nearest official tokens

An arbitrary HEX is not an official Tailwind, Material, or Bootstrap color. Distance is CIEDE2000.

Nearest Tailwind color

neutral-700

Noticeably different · ΔE 2.29 · #404040

Nearest CSS named color

DarkSlateGray

Very different · ΔE 13.09 · #2F4F4F

Nearest Material color

grey-800

Noticeably different · ΔE 2.66 · #424242

Nearest Bootstrap color

dark

Very different · ΔE 7.89 · #212529

Using this color

Where #3b3d40 works

Sensible jobs for this swatch

supporting UI accents
text or icons on a white canvas

On a black or near-black UI, #3b3d40 is 1.93:1. Prefer it as a fill, border, or large heading rather than 16px copy.

Low saturation makes this easy to overuse as a neutral. Keep one chromatic accent elsewhere so the interface does not go muddy.

Grey family swatches still need a measured foreground pair. Verify this exact hex in the contrast checker.

Similar & related colors

Nearby colors from the library by perceptual distance

Tailwind neutral 700#404040 Material Grey 800#424242 Tailwind zinc 700#3F3F46 Web Safe #333333#333333 Dracula Orchid#2D3436 Tailwind stone 700#44403C Material Blue Grey 900#263238 Material Blue Grey 800#37474F Tailwind gray 700#374151 Tailwind zinc 800#27272A Tailwind neutral 600#525252 Tailwind neutral 800#262626