#383437

Accessibility

AAA

12.25:1

Vs white / black

12.25:1 · 1.71:1

Sources

Library color

Codes

Formats

HEX

#383437

RGB

rgb(56, 52, 55)

RGBA

rgba(56, 52, 55, 1)

HSL

hsl(315, 4%, 21%)

HSLA

hsla(315, 4%, 21%, 1)

HSV

hsv(315, 7%, 22%)

LAB

lab(22.2% 2.43 -1.25)

LCH

lch(22.2% 2.73 332.78)

OKLAB

oklab(0.3303 0.0069 -0.0033)

OKLCH

oklch(0.3303 0.0076 334.44)

XYZ

xyz(3.55, 3.57, 4.12)

CMYK

cmyk(0%, 7%, 2%, 78%)

CSS

color: #383437;

CSS variable

--color-383437: #383437;

SCSS

$color-383437: #383437;

JavaScript

const color = "#383437";

TypeScript

const color: string = "#383437";

React

style={{ backgroundColor: "#383437" }}

JSON

{ "hex": "#383437", "rgb": { "r": 56, "g": 52, "b": 55 }, "oklch": "oklch(0.3303 0.0076 334.44)" }

Export

Developer code

css

:root {
  --#383437-1: #383437;
}

Design systems

Nearest official tokens

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

Nearest Tailwind color

zinc-700

Noticeably different · ΔE 4.54 · #3F3F46

Nearest CSS named color

Black

Very different · ΔE 14.49 · #000000

Nearest Material color

grey-800

Very different · ΔE 5.51 · #424242

Nearest Bootstrap color

dark

Very different · ΔE 7.28 · #212529

OKLCH

Perceptual 50–950 scale

Generated in OKLCH from this hex. Not an official Tailwind scale unless the hex itself is a Tailwind token.

50fef0fb 100f1e3ed 200ddd0da 300c6b9c3 400aa9da7 5008e828b 600786c75 70061555e 8004b4048 900362b33 95021171e

Palette

Tints & shades

Full scale from light tints through the base color into deep shades

eeeeee deddde cdcccd bdbbbc acaaac 9c9a9b 8b898a 7a787a 6a6769 595658 494548 383437 333032 2f2b2e 2a2729 252325 211e20 1c1a1c 171617 131112 0e0d0e 090909 050405

Palette

Tints

Mixed toward white — soft backgrounds and highlights

eeeeee deddde cdcccd bdbbbc acaaac 9c9a9b 8b898a 7a787a 6a6769 595658 494548

Palette

Shades

Mixed toward black — depth, text, and emphasis

333032 2f2b2e 2a2729 252325 211e20 1c1a1c 171617 131112 0e0d0e 090909 050405

Palette

Tones

Mixed toward neutral grey — muted UI surfaces

3e3a3d 444143 4a4749 504d4f 565455 5c5a5c 626062 686768 6e6d6e 747374 7a7a7a

Harmony

Complementary

Opposite on the color wheel for contrast

#383437Stop 1 #333834Stop 2

Harmony

Analogous

Neighbors that sit comfortably together

#373338Stop 1 #383437Stop 2 #383334Stop 3

Harmony

Triadic

Evenly spaced triad for vibrant sets

#383437Stop 1 #373833Stop 2 #333738Stop 3

Harmony

Split complementary

Base plus two accents beside the complement

#383437Stop 1 #343833Stop 2 #333837Stop 3

Harmony

Monochromatic

Same hue, varied lightness and saturation

#353134Stop 1 #5D565BStop 2 #857A82Stop 3 #A9A2A8Stop 4 #CECACDStop 5

Using this color

Where #383437 works

#383437 (#383437) sits in the grey family at about 315° hue, 4% saturation, and 21% lightness. Contrast is 12.25:1 on white and 1.71:1 on black, so white labels read more clearly on the swatch itself. Nearest Tailwind token: zinc-700 (approximation unless the hex is an official scale stop).

Sensible jobs for this swatch

supporting UI accents
text or icons on a white canvas

On a black or near-black UI, #383437 is 1.71:1. 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.

Family context: Neutrality, balance, and modernity. Essential for UI chrome, typography, and systems. Common uses still include buttons, charts, and accents in the Grey range — always verify the pair for this exact hex in the contrast checker.

Similar & related colors

Nearby colors from the library by perceptual distance

Web Safe #333333#333333 Tailwind zinc 700#3F3F46 Tailwind neutral 700#404040 Tailwind zinc 800#27272A Material Grey 800#424242 Tailwind stone 800#292524 Tailwind neutral 800#262626 Tailwind stone 700#44403C Dracula Orchid#2D3436 Bootstrap dark#212529 Material Grey 900#212121 Material You On Surface#1C1B1F