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Tough Gin

#374ea3
Notes

Tough Gin (#374EA3) is a true blue 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 (227°, 50%, 43%) 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 amber. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#374ea3
RGB
rgb(55, 78, 163)
HSL
hsl(227, 50%, 43%)
HWB
hwb(227 22% 36%)
OKLCH
oklch(45.4% 0.140 268.9)
HSV
hsv(227, 66%, 64%)
LAB
lab(35.80% 19.71 -48.71)
LCH
lch(35.80% 52.55 292.03)
CMYK
cmyk(66%, 52%, 0%, 36%)

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.

Gin
noun

The juniper-flavored distilled spirit — and the saturated deep blue of Bombay Sapphire-bottle glass and Hendrick's-style apothecary-style packaging. Gin color refers to a fresh-poured gin bottle in a bar light: a saturated, slightly cool deep blue with the high gloss of dyed glass.

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.

#374ea3
Original
#1b59a6
Protanopia
#0050a1
Deuteranopia
#006271
Tritanopia
#4f4f4f
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
7.55:1
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
2.78:1

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