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Symmetrical Orpiment

#a55421
Notes

Symmetrical Orpiment (#A55421) is a true orange with a warm character. It leans warm, pulling light toward red, orange, and yellow. Naturally inviting, it suits editorial and hospitality contexts. Its HSL profile (23°, 67%, 39%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. 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
#a55421
RGB
rgb(165, 84, 33)
HSL
hsl(23, 67%, 39%)
HWB
hwb(23 13% 35%)
OKLCH
oklch(53.6% 0.124 49.2)
HSV
hsv(23, 80%, 65%)
LAB
lab(44.87% 29.78 43.05)
LCH
lch(44.87% 52.34 55.33)
CMYK
cmyk(0%, 49%, 80%, 35%)

Etymology

Symmetrical
adjective

Greek symmetría, due-proportion — adjectival suffix -al, derived from sym-metron (with-measure). As a color modifier, symmetrical implies a clear-and-balanced-and-mirrored quality where the hue carries the visual register of bilateral-or-radial proportional symmetry. Sits at the crisp-and-balanced end of the grid, parallel to balanced and aligned in usage.

Orpiment
noun

An arsenic-sulfide mineral pigment — used since classical times for the yellow-orange of medieval illuminated manuscripts and Persian miniature painting. The color refers to ground orpiment in a Renaissance illuminator's shell: a saturated, slightly cool yellow-orange with the resinous shine of crystalline arsenic compound. Cooler than realgar, brighter than ochre.

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

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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.

#a55421
Original
#6b5f1a
Protanopia
#7f7120
Deuteranopia
#b5424a
Tritanopia
#626262
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).
AAon White
5.40:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
3.89:1

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