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Fitted Sheffield

#1a1a13
Notes

Fitted Sheffield (#1A1A13) is a deep yellow with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (60°, 16%, 9%) places it in the muted band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. For a confident two-color system, pair it with its complementary blue. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#1a1a13
RGB
rgb(26, 26, 19)
HSL
hsl(60, 16%, 9%)
HWB
hwb(60 7% 90%)
OKLCH
oklch(21.5% 0.013 107.5)
P3
color(display-p3 0.1020 0.1020 0.0773)
HSV
hsv(60, 27%, 10%)
LAB
lab(9.04% -1.63 4.68)
LCH
lch(9.04% 4.96 109.21)
CMYK
cmyk(0%, 0%, 27%, 90%)

Etymology

Fitted
adjective

Old English fit, fit — past-participle of fit. As a color modifier, fitted implies a neutral-and-precisely-sized-and-tailored quality, the neutral color of Savile-Row-and-Bond-Street-tailoring precisely-cut-and-fitted-to-form gentleman's-tailoring craft-finish. Sits at the neutral-and-traditional end of the grid, parallel to tailored and suited in usage.

Sheffield
noun

South-Yorkshire English steel-city — the Industrial-Revolution center of cutlery-and-tool-steel manufacturing, particularly the Sheffield Plate silver-plated Britannia-metal of the early-19th-century. Sheffield color refers to a Sheffield-Plate-silvered cutlery-set in late-Victorian display-case-light: a dark cool-gray with the metallic finish of Britannia-metal-and-silver-tarnish on hand-rolled English silver-plated cutlery.

Closest matches

The nearest named color in three reference sources, ranked by perceptual distance (ΔE76 in CIELAB). ΔE < 1 is imperceptible to most viewers; ΔE > 10 is clearly different. When two sources point to the same hex they’re merged into one tile; click any to open that color’s page.

Variations

Click any swatch to explore

Harmonies

This color has effectively no chroma (OKLCH C = 0.013) — it’s on the grayscale axis. Hue rotations don’t change a grayscale color, so complementary, analogous, triadic, and split-complementary all reduce to the same value. They aren’t shown because four identical tiles would be misleading.

Accessibility

Color-vision simulation

How this color appears to viewers with the four major color-vision-deficiency types. Computed via the Machado (2009) physiologically-based model. If a tile matches the original, the color reads the same to that viewer.

#1a1a13
Original
#1b1913
Protanopia
#1b1a13
Deuteranopia
#1b1918
Tritanopia
#191919
Achromatopsia
WCAG contrast

The color used as foreground text against pure white and pure black, with the contrast ratio and WCAG 2.1 grade. Aim for AA (4.5:1) for body text and AA Large (3:1) for 18 pt+ headlines; AAA (7:1) is the gold standard for long-form reading surfaces.

The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon White
17.48:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
1.20:1

Wide gamut

Display P3 representation

The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.

sRGB hex
sRGB hex
##1A1A13
Display P3
Display P3
color(display-p3 0.1020 0.1020 0.0773)
Inside sRGBOKLCH chroma 0.013

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

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