RAL 7043 Traffic Grey B

#4E5452

RAL color

Traffic Grey B (#4E5452) is a deep, dark neutral grey from the RAL Classic system, the darker counterpart to Traffic Grey A, used where stronger contrast or a more authoritative appearance is needed in transport infrastructure. It appears on heavy vehicle coatings, traffic bollards, industrial machinery guards, and urban design elements. The near-charcoal depth gives it a serious, functional character consistent with safety and regulatory contexts.

カラー値

HEX

#4E5452

RGB

78, 84, 82

HSL

160.0, 3.7%, 31.8%

HSV

160.0, 7.1%, 32.9%

CMYK

7.1%, 0.0%, 2.4%, 67.1%

OKLCH

0.4398 0.0083 174.0

プロパティ

色彩心理学

Dark grays and charcoals project authority, formality, and sophisticated restraint. They are the color of graphite, storm clouds, and evening suits, carrying weight without the absolute finality of black. These tones suggest seriousness and expertise tempered by subtle warmth.

Design Usage

Dark gray is the preferred text color over pure black for reducing eye strain on light backgrounds. It serves as the standard dark-mode surface color in Material Design and other major design systems. Pair it with a single vivid accent color for a minimal, high-impact visual hierarchy.

カラーハーモニー

色覚異常シミュレーション

CSS使用法

background-color: #4E5452;
color: #4E5452;
border-color: #4E5452;
最も近いTailwind: Neutral 600 #525252

Tailwindシェード

コントラストチェッカー

白背景のテキスト

7.74:1

AA Pass AAA Pass

黒背景のテキスト

2.71:1

AA Fail AAA Fail

比較する

よくある質問

What are the RGB, HSL, and CMYK values of #4E5452?

RGB(78, 84, 82) · HSL(160.0, 3.7%, 31.8%) · CMYK(7.1%, 0.0%, 2.4%, 67.1%)

Does #4E5452 meet WCAG contrast on white?

7.74:1 — WCAG AA 合格, AAA 合格 for normal text.

What text color is readable on #4E5452?

Use FFFFFF text on a #4E5452 background; contrast on black is 2.71:1.