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Armored Tortoise

#c57915
Notes

Armored Tortoise (#C57915) is a true orange with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (34°, 81%, 43%) places it in the highly saturated band at a mid lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. 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
#c57915
RGB
rgb(197, 121, 21)
HSL
hsl(34, 81%, 43%)
HWB
hwb(34 8% 23%)
OKLCH
oklch(64.3% 0.138 65.5)
HSV
hsv(34, 89%, 77%)
LAB
lab(57.66% 22.95 60.12)
LCH
lch(57.66% 64.35 69.11)
CMYK
cmyk(0%, 39%, 89%, 23%)

Etymology

Armored
adjective

Old French armëure, armor — past-participle of armor, derived from Latin arma (weapons). As a color modifier, armored implies a saturated-and-armor-clad-and-defensive quality, the deep-rich color of medieval-knight full-plate-armor visible-and-formidable battle-presence. Sits at the bold-and-fortified end of the grid, parallel to ironclad and shielded.

Tortoise
noun

The mottled brown-gold of Eretmochelys imbricata (hawksbill sea turtle) shell — used for combs, eyeglass frames, and ornamental boxes from Roman times until the species was protected in 1973. The color refers to a polished tortoiseshell comb: a warm, slightly translucent gold-brown with the optical complexity of layered keratin.

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.

#c57915
Original
#918000
Protanopia
#a39218
Deuteranopia
#d86768
Tritanopia
#828282
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).
AA Largeon White
3.43:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
6.12:1

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