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Cavernous Salvia

#39308a
Notes

Cavernous Salvia (#39308A) 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 (246°, 48%, 36%) 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 yellow. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#39308a
RGB
rgb(57, 48, 138)
HSL
hsl(246, 48%, 36%)
HWB
hwb(246 19% 46%)
OKLCH
oklch(37.7% 0.144 281.5)
HSV
hsv(246, 65%, 54%)
LAB
lab(26.21% 30.89 -49.01)
LCH
lch(26.21% 57.93 302.22)
CMYK
cmyk(59%, 65%, 0%, 46%)

Etymology

Cavernous
adjective

An adjectival form of cavern, used principally for the deep darkness of large enclosed spaces. As a color modifier, cavernous implies the slightly cool deep blacks of a Lascaux-style cave or a basilica crypt — darkness with the optical complexity of a space larger than any single light source can fill. Sits in the deep-and-spatial end of the grid.

Salvia
noun

The genus Salvia — the sages of the kitchen and ornamental sages of the garden — over 900 species, many with vivid blue-violet flower spikes that distinguish ornamental cultivars from culinary forms. The color refers to a fresh Salvia farinacea (mealy-cup sage) spike: a saturated, slightly violet-shifted blue with the matte finish of small lipped flowers along a single stem. Cooler than veronica, warmer than larkspur.

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.

#39308a
Original
#00418d
Protanopia
#003b88
Deuteranopia
#0c4658
Tritanopia
#383838
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
10.69:1
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
1.96:1

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Canvas