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Reflective Cinnamon

#664e3a
Notes

Reflective Cinnamon (#664E3A) 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 (27°, 28%, 31%) 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
#664e3a
RGB
rgb(102, 78, 58)
HSL
hsl(27, 28%, 31%)
HWB
hwb(27 23% 60%)
OKLCH
oklch(44.4% 0.045 61.1)
P3
color(display-p3 0.3853 0.3096 0.2383)
HSV
hsv(27, 43%, 40%)
LAB
lab(35.16% 7.10 15.71)
LCH
lch(35.16% 17.24 65.68)
CMYK
cmyk(0%, 24%, 43%, 60%)

Etymology

Reflective
adjective

Latin reflectere, to bend back — adjectival suffix -ive. As a color modifier, reflective implies a hushed-and-thoughtful-and-mirroring quality where the hue carries the visual register of Quaker-and-Friends-meeting-house still-and-meditative interior-architecture. Sits at the hushed-and-still end of the grid, parallel to meditative and contemplative in usage.

Cinnamon
noun

The inner bark of Cinnamomum verum, the Sri Lankan true cinnamon — harvested in thin scrolls and dried into the curled quills familiar from spice shelves. The color is freshly ground cinnamon powder: a warm, slightly dusty red-brown that sits between rust and cocoa. Warmer than walnut, drier than caramel, with the resinous warmth of a spice that has driven trade routes since the Roman Empire.

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.

#664e3a
Original
#555039
Protanopia
#5b553a
Deuteranopia
#6d4949
Tritanopia
#525252
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
7.73:1
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
2.72:1

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
##664E3A
Display P3
Display P3
color(display-p3 0.3853 0.3096 0.2383)
Inside sRGBOKLCH chroma 0.045

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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