RAL 5013 Cobalt Blue

#1E213D

RAL color

RAL 5013 Cobalt Blue (#1E213D) is a very deep, dark navy-blue from the RAL Classic system named after cobalt, the metallic element whose compounds have produced rich blue pigments since antiquity. This deep blue has aristocratic associations through Delftware, Meissen porcelain, and cobalt glass. It's used in premium ceramic specifications and prestige product design.

カラー値

HEX

#1E213D

RGB

30, 33, 61

HSL

234.2, 34.1%, 17.8%

HSV

234.2, 50.8%, 23.9%

CMYK

50.8%, 45.9%, 0.0%, 76.1%

OKLCH

0.26 0.0524 277.5

プロパティ

色彩心理学

Dark blues like navy and midnight convey authority, intelligence, and unshakeable confidence. They are the color of police uniforms, corporate suits, and official documents worldwide. Navy blue inspires feelings of security and order, anchoring visual hierarchies with gravitas.

Design Usage

Dark blue is the premier choice for header backgrounds, navigation bars, and footer sections in corporate websites. It provides excellent contrast for white text and creates a sense of depth and professionalism. Pair it with bright accent colors like orange or lime for vibrant CTAs that pop against the authoritative background.

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: #1E213D;
color: #1E213D;
border-color: #1E213D;
最も近いTailwind: Slate 900 #0F172A

Tailwindシェード

コントラストチェッカー

白背景のテキスト

15.67:1

AA Pass AAA Pass

黒背景のテキスト

1.34:1

AA Fail AAA Fail

比較する

よくある質問

What are the RGB, HSL, and CMYK values of #1E213D?

RGB(30, 33, 61) · HSL(234.2, 34.1%, 17.8%) · CMYK(50.8%, 45.9%, 0.0%, 76.1%)

Does #1E213D meet WCAG contrast on white?

15.67:1 — WCAG AA 合格, AAA 合格 for normal text.

What text color is readable on #1E213D?

Use FFFFFF text on a #1E213D background; contrast on black is 1.34:1.