azure 4

#838B8B

X11 color

Azure 4 (#838B8B) is the darkest entry in the X11 azure series, a cool medium gray with minimal teal tint. At this depth, the azure character recedes into a general cool gray, useful for body text, secondary interface elements, or understated metallic effects. It pairs naturally with whites, creams, and bright accent colors.

カラー値

HEX

#838B8B

RGB

131, 139, 139

HSL

180.0, 3.3%, 52.9%

HSV

180.0, 5.8%, 54.5%

CMYK

5.8%, 0.0%, 0.0%, 45.5%

OKLCH

0.6302 0.0094 196.9

プロパティ

寒色 明るい 最も近い: azure 4

色彩心理学

Medium gray represents balance, neutrality, and diplomatic composure. It is the color of concrete, steel, and overcast skies, suggesting urban modernity and industrial strength. Gray communicates professionalism and impartiality in equal measure.

Design Usage

Medium gray is essential for body text, icons, and secondary labels in user interfaces. It provides the typographic backbone of design systems, separating primary from secondary information. Ensure proper contrast ratios since many popular mid-gray values fall below WCAG AA for text on white backgrounds.

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: #838B8B;
color: #838B8B;
border-color: #838B8B;
最も近いTailwind: Neutral 500 #737373

Tailwindシェード

コントラストチェッカー

白背景のテキスト

3.48:1

AA Fail AAA Fail

黒背景のテキスト

6.03:1

AA Pass AAA Fail

比較する

よくある質問

What are the RGB, HSL, and CMYK values of #838B8B?

RGB(131, 139, 139) · HSL(180.0, 3.3%, 52.9%) · CMYK(5.8%, 0.0%, 0.0%, 45.5%)

Does #838B8B meet WCAG contrast on white?

3.48:1 — WCAG AA 不合格, AAA 不合格 for normal text.

What text color is readable on #838B8B?

Use 000000 text on a #838B8B background; contrast on black is 6.03:1.