Umber sits a neutral / achromatic tone, with the hex code #635147 mapping to rgb(99, 81, 71) in RGB and hsl(21.4, 16.5%, 33.3%) in HSL. In OKLCH it carries 45% perceptual lightness and 0.029 chroma — a desaturated, dark reading that behaves well as a primary, accent or decisive colour in modern interfaces. Neutrals are the connective tissue of every design system — backgrounds, borders, body copy and surfaces all live here. Their psychology is contextual: warm neutrals feel inviting and editorial, cool neutrals feel technical and precise.
Neutrals are the connective tissue of every design system — backgrounds, borders, body copy and surfaces all live here. Their psychology is contextual: warm neutrals feel inviting and editorial, cool neutrals feel technical and precise.
Neutrals are where contrast bugs hide — a body text grey of #777 on white fails AA. Audit every neutral against its actual background, not against pure white or pure black.
#635147rgb(99, 81, 71)hsl(21.4, 16.5%, 33.3%)hsv(21.4, 28.3%, 38.8%)lch(36.09% 10.98 53.82)oklch(45.02% 0.0289 50.7)lab(36.09% 6.48 8.86):root {
--color: #635147;
--color-rgb: rgb(99, 81, 71);
--color-hsl: hsl(21.4, 16.5%, 33.3%);
--color-oklch: oklch(45.02% 0.0289 50.7);
}How umber performs as foreground text on common surfaces, scored with WCAG 2.1.
Tints are produced by mixing umber with progressively more white.
Shades are produced by mixing umber with progressively more black.
Tones are produced by mixing umber with progressively more gray, lowering chroma while keeping lightness.