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Tough Coy Brick

#911605
Notes

Tough Coy Brick (#911605) is a deep red with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (7°, 93%, 29%) places it in the highly saturated band at a dark 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 cyan. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#911605
RGB
rgb(145, 22, 5)
HSL
hsl(7, 93%, 29%)
HWB
hwb(7 2% 43%)
OKLCH
oklch(42.3% 0.159 31.2)
HSV
hsv(7, 97%, 57%)
LAB
lab(30.89% 48.65 42.00)
LCH
lch(30.89% 64.28 40.80)
CMYK
cmyk(0%, 85%, 97%, 43%)

Etymology

Tough
adjective

Old English tōh, firm / tenacious — sharing root with German zäh. As a color modifier, tough implies a saturated-and-resilient quality where the hue resists fading-and-modulation through its strong pigmentation. Sits at the bold-and-resilient end of the grid, parallel to rugged and hardy in usage.

Coy
modifier

Latin quietus, still-and-quiet. As a color modifier, coy implies a shy-and-reserved-and-half-glanced quality, the visual register of Watteau-fête-galante-and-Rococo-coy hand-shy-and-reserved-and-half-glanced Watteau-fête-galante-and-Rococo-and-French-pastoral coyed-and-shy-and-reserved-and-half-glanced surfaces under Watteau-fête-galante-and-Rococo-and-French-pastoral garden-pavilion-and-fan-and-mask powdered-pastel-light. Sits at the modifier-and-mood end of the grid, parallel to meek and charm in usage.

Brick
noun

Fired clay, mineral red. The color refers to common building brick — iron-rich earthenware kilned to the specific dusky red-orange of a Victorian terrace, a Roman aqueduct, an adobe wall in New Mexico. Less saturated than ruby, warmer than burgundy, with a chalky cast that reads as architectural rather than decorative.

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.

#911605
Original
#403800
Protanopia
#5d5200
Deuteranopia
#a10015
Tritanopia
#2f2f2f
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
9.05:1
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
2.32:1

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