เช่นเดียวกับที่ Material 3 Expressive ใช้บทบาทของสี Wear OS จะใช้สีในประสบการณ์การใช้งานที่ปรับให้เหมาะกับแต่ละบุคคลด้วยการแสดงสีแบบไดนามิกและเข้าถึงได้ Wear OS ใช้เฉพาะธีมมืดเนื่องจากอินเทอร์เฟซอุปกรณ์ที่สวมใส่ได้สร้างขึ้นบนพื้นหลังสีดํา เนื่องจากเป็นแพลตฟอร์มที่ทำงานบนอุปกรณ์แบบสัมผัส WearOS จึงมีจานสีที่จำกัดกว่า เนื่องจากไม่จำเป็นต้องมีสถานะการวางเมาส์เหนือและโฟกัสมากนัก ใช้เครื่องมือสร้างธีมสีสำหรับ Wear OS โดยเฉพาะเพื่อสร้างธีมที่กำหนดเองตามแบรนด์ของคุณ และสร้างชุดสีอ้างอิงแบบสมบูรณ์และบทบาทสีที่กำหนดซึ่งรองรับโทเค็น Material Design และสร้างขึ้นให้ทำงานร่วมกับคอมโพเนนต์ UI ของระบบได้อย่างราบรื่น
[[["เข้าใจง่าย","easyToUnderstand","thumb-up"],["แก้ปัญหาของฉันได้","solvedMyProblem","thumb-up"],["อื่นๆ","otherUp","thumb-up"]],[["ไม่มีข้อมูลที่ฉันต้องการ","missingTheInformationINeed","thumb-down"],["ซับซ้อนเกินไป/มีหลายขั้นตอนมากเกินไป","tooComplicatedTooManySteps","thumb-down"],["ล้าสมัย","outOfDate","thumb-down"],["ปัญหาเกี่ยวกับการแปล","translationIssue","thumb-down"],["ตัวอย่าง/ปัญหาเกี่ยวกับโค้ด","samplesCodeIssue","thumb-down"],["อื่นๆ","otherDown","thumb-down"]],["อัปเดตล่าสุด 2025-07-27 UTC"],[],[],null,["# Color system\n\nThe Material 3 Expressive color framework uses dynamic color theming, based on\ntwo seed colors mapped on the HCT (Hue, Chroma and Tone) color system.\n\nEssential terms\n---------------\n\nColor role\n: Like the \"numbers\" on a paint-by-number canvas, color roles are assigned to\n specific UI elements. They have names like primary, on primary, and primary\n container. The same color role is used for both light and dark themes. See all\n color roles\n\nHCT\n: HCT stands for hue, chroma, and tone.\n\nDefine colors with hue, chroma, and tone (HCT)\n----------------------------------------------\n\nHCT color generator creating a set of color palettes from one seed color to\ncreates a three-dimensional color model that defines colors based on their hue\n(color), chroma (saturation), and tone (lightness)\n\nThere are three main accents colors: primary, secondary and tertiary. Neutral\nshades, such as various tones of gray with a hint of primary color, are ideal\nfor use as container colors for rich content due to their monochromatic nature.\n\n### Hue\n\n\nHue is the perception of a color, such as red, orange, yellow, green, blue, and\nviolet. Hue is quantified by a number ranging from 0-360 and is a circular\nspectrum (values 0 and 360 are the same hue). \n\n\u003cbr /\u003e\n\n### Chroma\n\n\nChroma is how colorful or neutral (gray, black or white) a color appears. Chroma\nis quantified by a number ranging from 0 (completely gray, black or white) to\ninfinity (most vibrant), though chroma values in HCT top out at roughly 120.\n\nBecause of biological and screen rendering limitations, different hues and\ndifferent tones will have different maximal chroma values. \n\n\u003cbr /\u003e\n\n### Tone\n\n\nTone is how light or dark a color appears. Tone is sometimes also referred to as\n*luminance*. Tone is quantified by a number ranging from 0 (pure black, no\nluminance) to 100 (pure white, complete luminance).\n\nTone is crucial for visual accessibility because it determines contrast. Colors\nwith a greater difference in tone create higher contrast, while those with a\nsmaller difference create lower contrast. \n\n\u003cbr /\u003e\n\nDynamic color (color theming)\n-----------------------------\n\nWear OS implements a theming system compliant with [Web Content Accessibility\nGuidelines (WCAG)-AAA](https://www.w3.org/TR/WCAG22/#contrast-enhanced), derived from two designated *seed\ncolors*. Specifically, these seed colors serve as the basis for primary and\ntertiary palettes. Using these two initial colors, the system generates a\ncomprehensive color palette encompassing primary, secondary, tertiary, and\nsurface palettes. Subsequently, this generated theme is applied across Wear OS\ncomponents, System UI elements, tiles, and apps.\nEach Watch face defines two seed colors, used for primary and tertiary palettes.\n\n\u003cbr /\u003e\n\nThese seeds are put through an algorithm that becomes five tonal ranges, specific tones (based on luminance) are slotted into the predefined roles that consist of a scheme. Colors are mapped to a scheme through design tokens.\n\n\u003cbr /\u003e\n\nEach design token is then applied to the SysUI, tiles and apps that have opted in to using dynamic color.\n\n\u003cbr /\u003e\n\nDepending on your preference, you can use either a specific seed color or a\nbrand color to derive your dynamic color.\n\n### From seed color\n\nDynamic color will automatically create an accessible color scheme based on a\nspecific seed color.\n\nBecause the UI could end up with any number of different source colors, it's\nbest to initially design using the baseline color scheme so you can ensure the\nright color roles are mapped to the right components in your product. Use the\nMaterial Theme Builder to see how your UI mocks look across a range of source\ncolors and adjust settings as needed.\n\n\nColor palette (from Watch face seed colors) \n\nColor theme applied to a Tile \n\nColor theme applied to an app screen\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n### From brand color\n\nSimilar to the way Material 3 Expressive treats color roles, Wear OS applies\ncolor to individualized experiences with dynamic and accessible color\nexpression. Wear OS uses only the dark theme because the wearable interface is\nbuilt on a black background. Being a platform that runs on touch devices, Wear\nOS also has a more limited color palette as it doesn't require as many hover and\nfocus states. Use the Wear OS-specific color theme building tools to build a\ncustom theme around your brand and generate the full reference palettes and\nassigned color roles that support Material Design tokens and are built to work\nseamlessly with system UI components.\n\n\nColor palette (from artwork seed colors) \n\nColor theme applied to a Tile \n\nColor theme applied to an app screen\n\n\u003cbr /\u003e"]]
