Figura 15.17. GIMP Color Selector

Com o seletor de cores do GIMP, você seleciona uma cor clicando em uma faixa unidimensional localizada do lado direito, e então. refinando a escolha na quadrado (2 dimensões) à esquerda. A faixa de uma dimensão pode codificar qualquer um dos parâmetros de cor: H (matiz), S (Saturação), V (Valor), R (Vermelho), G (Verde) ou B (Azul). A área bidimensional então codificará os dois parâmetros complementares.

Figura 15.18. CMYK Color Selector

Você ativa este seletor ao clicar no ícone de impressora. A visão em CMYK lhe dá a possibilidade de gerenciar cores com o modelo de cores CMYK.

Figura 15.19. Seletor de cores de aquarela

This selector is a little different than the other models. The principle consists in changing the current foreground color by clicking in the rectangular palette. If the current foreground color is for example white, then it turns reddish by clicking in the red color area. Repeated clicking strengthens the effect. With the slider, which is next to the color palette, you can set the color quantity per mouse click. The higher the sliding control is, the more color is taken up per click.

Figura 15.20. Wheel Color Selector

Este seletor usa o modelo de cor HSV . Clique no círculo cromático e arraste o ponteiro do mouse para selecionar o Matiz. Em seguida, clique e arraste no triângulo para modificar a Saturação (verticalmente) e o Valor (horizontalmente).

Figura 15.21. Seletor de cores de Paleta

This color selector brings up a list of the colors of the current palette in the Palettes dialog. You can set GIMP's foreground or background colors by clicking on colors in the colors display. You can also use the arrow keys to move within the list of colors.

Figura 15.22. Scales Color Selector

Este seletor apresenta uma visão global dos canais R, G e B e dos valores de H, S e V, colocados em controles deslizantes. (Na versão do diálogo que aparece ao clicar numa cor na caixa de ferramentas, esses controles ficam visíveis o tempo todo, mesmo nos outros modos de seleção)

The symbol consisting of two arrows allows you to exchange the foreground and background color. At the bottom left of this icon, below the foreground color block, you find a switching surface with two small, one black and the other white, partially overlapping squares. If you click on these, the front and background color are reset to black and white respectively.

The color picker has a completely different behavior than the color picker tool. Instead of picking the colors from the active image, you're able to pick colors from the entire screen.

The downside is that you get colors after they got processed by the full system color stack, in particular color management. It means that the resulting color values may end up different from ones returned by the color picker tool when picking over the canvas. It is up to you to make an informed choice of which color picker to use.

This is a text field with six characters. See HTML notation. You can also use the CSS keywords; enter the first letter of a color to get a list of colors with their keyword:

Figura 15.23. Exemplo de palavras-chave do CSS

Right-clicking in the HTML Notation text box opens a context menu that allows you to edit your notation, particularly to paste a complex notation you have copied elsewhere.

Twelve buttons at the bottom show the last used colors. You may choose a color by clicking on one of these buttons or add the current foreground or background color to this history list.