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Olden Topazio

#645342
Notes

Olden Topazio (#645342) is a deep orange 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 (30°, 20%, 33%) 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 azure. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#645342
RGB
rgb(100, 83, 66)
HSL
hsl(30, 20%, 33%)
HWB
hwb(30 26% 61%)
OKLCH
oklch(45.4% 0.035 66.8)
P3
color(display-p3 0.3813 0.3280 0.2672)
HSV
hsv(30, 34%, 39%)
LAB
lab(36.54% 4.22 12.60)
LCH
lch(36.54% 13.28 71.48)
CMYK
cmyk(0%, 17%, 34%, 61%)

Etymology

Olden
adjective

Old English eald, old — adjectival suffix -en. As a color modifier, olden implies a hushed-and-aged-and-historical quality where the hue carries the visual register of Olde-Worlde nostalgic-and-faded period-correct historical color. Sits at the hushed-and-aged end of the grid, parallel to bygone and ancient in usage.

Topazio
noun

The Italian word for topaz — used in Renaissance jewelry vocabulary and Italian fashion writing for the warm gold-yellow of imperial topaz. The color refers to a faceted Italian-cut topazio: a saturated, slightly cool deep gold-yellow with the gem's signature internal warmth. The Italian cousin of topaz.

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

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.

#645342
Original
#595441
Protanopia
#5d5842
Deuteranopia
#6a4f4e
Tritanopia
#555555
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
7.35:1
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
2.86:1

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
##645342
Display P3
Display P3
color(display-p3 0.3813 0.3280 0.2672)
Inside sRGBOKLCH chroma 0.035

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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