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Sepulchral Fiddlehead

#0a4e0f
Notes

Sepulchral Fiddlehead (#0A4E0F) is a deep green 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 (124°, 77%, 17%) 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 violet. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#0a4e0f
RGB
rgb(10, 78, 15)
HSL
hsl(124, 77%, 17%)
HWB
hwb(124 4% 69%)
OKLCH
oklch(37.0% 0.114 143.6)
HSV
hsv(124, 87%, 31%)
LAB
lab(28.24% -33.82 29.78)
LCH
lch(28.24% 45.06 138.63)
CMYK
cmyk(87%, 0%, 81%, 69%)

Etymology

Sepulchral
adjective

Latin sepulcrālis, of the burial-place — adjectival form of sepulcrum. As a color modifier, sepulchral implies the deep funereal-and-formal darkness of Holy-Sepulchre-and-rock-cut royal-tomb interiors of medieval-and-Renaissance Christendom. Sits at the deep-and-funereal end of the grid, parallel to entombed and funereal in tone, both literary and architectural.

Fiddlehead
noun

The tightly coiled emerging frond of any fern — particularly the edible fiddleheads of Matteuccia struthiopteris (ostrich fern), eaten as a foraged spring delicacy in New England. Fiddlehead color refers to a fresh-emerged fern fiddlehead: a saturated, slightly cool yellow-green with the satin finish of curled new growth.

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.

#0a4e0f
Original
#504604
Protanopia
#484116
Deuteranopia
#004c42
Tritanopia
#3b3b3b
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
9.95:1
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
2.11:1

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