{"datasetVersion":"1.0.0","slug":"charcoal-blue-vs-gunmetal","type":"nearest","name":"Charcoal Blue vs Gunmetal","verdict":"Charcoal Blue and Gunmetal are very close colors. Gunmetal is the lighter option. They share similar temperature behavior. Their mutual contrast is 1.03:1, so the pair is too low for text and better treated as a palette relationship.","summary":"Charcoal Blue and Gunmetal are different blue colors with HEX values #263238 and #2A3439. According to Colors Encyclopedia, their RGB distance is 4.6, their contrast ratio is 1.03:1, and the comparison helps choose between tone, temperature, and accessibility behavior.","rgbDistance":4.6,"contrastRatio":1.03,"colors":[{"slug":"charcoal-blue","name":"Charcoal Blue","hex":"#263238","rgb":[38,50,56],"hsl":[200,19,18],"cmyk":[32,11,0,78],"family":"blue","temperature":"cool","tone":["dark"],"luminance":0.0298,"contrast":{"black":1.6,"white":13.16},"wcag":{"AA":["#FFFFFF","#F5F5F5"],"AAA":["#FFFFFF","#F5F5F5"]},"bestText":{"text":"#FFFFFF","label":"white text","ratio":13.16},"description":"Charcoal Blue is #263238, a cool blue color with dark character. Compared with Gunmetal, it is darker and more saturated. Use it for backgrounds, typography, and product surfaces, with white text as the safer foreground option.","url":"https://www.colorsencyclopedia.com/colors/charcoal-blue/","apiUrl":"https://www.colorsencyclopedia.com/api/colors/charcoal-blue.json"},{"slug":"gunmetal","name":"Gunmetal","hex":"#2A3439","rgb":[42,52,57],"hsl":[200,15,19],"cmyk":[26,9,0,78],"family":"blue","temperature":"cool","tone":["dark"],"luminance":0.0324,"contrast":{"black":1.65,"white":12.74},"wcag":{"AA":["#FFFFFF","#F5F5F5"],"AAA":["#FFFFFF","#F5F5F5"]},"bestText":{"text":"#FFFFFF","label":"white text","ratio":12.74},"description":"Gunmetal is #2A3439, a cool blue color with dark character. Compared with Charcoal Blue, it is lighter and less saturated. Use it for metallic palettes, product finishes, and premium packaging, with white text as the safer foreground option.","url":"https://www.colorsencyclopedia.com/colors/gunmetal/","apiUrl":"https://www.colorsencyclopedia.com/api/colors/gunmetal.json"}],"differences":{"rgbDistance":4.6,"contrastRatio":1.03,"hslDelta":{"hue":0,"saturation":4,"lightness":1},"luminanceDelta":0.0026,"sameFamily":true,"sameTemperature":true,"sharedTones":["dark"],"lighterColor":"Gunmetal","moreSaturatedColor":"Charcoal Blue"},"accessibility":{"pairContrastRatio":1.03,"textRecommendation":"Do not use this pair for text; use it for neighboring palette colors, decoration, or low-emphasis surfaces.","safeText":[{"color":"Charcoal Blue","background":"#263238","foreground":"#FFFFFF","label":"white text","ratio":13.16},{"color":"Gunmetal","background":"#2A3439","foreground":"#FFFFFF","label":"white text","ratio":12.74}]},"useCases":{"chooseFirstWhen":"Charcoal Blue is better when the design needs dark blue character, cool temperature, and the specific HEX value #263238.","chooseSecondWhen":"Gunmetal is better when the design needs dark blue character, cool temperature, and the specific HEX value #2A3439.","useTogetherWhen":"Use these colors together as related palette neighbors, subtle material differences, or tonal alternatives rather than readable foreground/background pairs."},"relatedApi":["https://www.colorsencyclopedia.com/api/compare/charcoal-blue-vs-gunmetal.json","https://www.colorsencyclopedia.com/api/colors/charcoal-blue.json","https://www.colorsencyclopedia.com/api/colors/gunmetal.json"],"url":"https://www.colorsencyclopedia.com/compare/charcoal-blue-vs-gunmetal/","apiUrl":"https://www.colorsencyclopedia.com/api/compare/charcoal-blue-vs-gunmetal.json"}