white

#FFFFFF

CSS color

Overview

At full intensity on all three additive channels — rgb(255, 255, 255) — a display produces white, hex #FFFFFF. It is the brightest value in the RGB gamut and, like black, a neutral with zero saturation and no defined hue. White is one of the sixteen original HTML named colors and the conventional background of web pages and printed documents. In additive light it represents the combination of red, green, and blue at maximum, the opposite of black's total absence. Because it reflects across the visible spectrum, white carries the highest perceived luminance of any color and is used as a reference point for measuring contrast ratios against darker foregrounds.

White (#FFFFFF) is pure, maximum-luminosity white in the CSS standard — the complete combination of all visible light wavelengths, or the full output of all three RGB channels. As the theoretical complete reflection of all light, pure white has profound symbolic significance across cultures: purity, innocence, cleanliness, new beginnings, and in digital design, the blank canvas itself. In web and graphic design, pure white provides maximum contrast and the foundation of all light-background layouts.

On this page

Giá trị màu sắc

HEX

#FFFFFF

RGB

255, 255, 255

HSL

0,0, 0,0%, 100,0%

HSV

0,0, 0,0%, 100,0%

CMYK

0,0%, 0,0%, 0,0%, 0,0%

OKLCH

1,0 0,0 89,9

Thuộc tính

Tâm lý màu sắc

Near-whites and off-whites radiate purity, simplicity, and spacious clarity. They feel open and unbounded, associated with cleanliness, fresh starts, and minimalism. These tones create a sense of potential and possibility, inviting focus on content.

Design Usage

Off-whites are preferred over pure white for page backgrounds to reduce glare. They feel warmer while maintaining a clean, bright aesthetic. Use for primary backgrounds and content areas where visual breathing room is needed.

Hòa âm màu sắc

Mô phỏng mù màu

Sử dụng CSS

background-color: #FFFFFF;
color: #FFFFFF;
border-color: #FFFFFF;
Tailwind gần nhất: Zinc 50 #FAFAFA

Sắc độ Tailwind

Kiểm tra tương phản

Văn bản trên nền trắng

1,0:1

AA Fail AAA Fail

Văn bản trên nền đen

21,0:1

AA Pass AAA Pass

So sánh với

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Câu hỏi thường gặp

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

RGB(255, 255, 255) · HSL(0,0, 0,0%, 100,0%) · CMYK(0,0%, 0,0%, 0,0%, 0,0%)

Does #FFFFFF meet WCAG contrast on white?

1,0:1 — WCAG AA Không đạt, AAA Không đạt for normal text.

What text color is readable on #FFFFFF?

Use 000000 text on a #FFFFFF background; contrast on black is 21,0:1.