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Native Tombstone

#150537
Notes

Native Tombstone (#150537) is a deep indigo 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 (259°, 83%, 12%) 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 lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#150537
RGB
rgb(21, 5, 55)
HSL
hsl(259, 83%, 12%)
HWB
hwb(259 2% 78%)
OKLCH
oklch(18.7% 0.090 289.8)
P3
color(display-p3 0.0739 0.0222 0.2061)
HSV
hsv(259, 91%, 22%)
LAB
lab(4.91% 21.32 -28.51)
LCH
lch(4.91% 35.60 306.79)
CMYK
cmyk(62%, 91%, 0%, 78%)

Etymology

Native
adjective

Latin nātīvus, born / natural — adjectival suffix -ive. As a color modifier, native implies a neutral-and-original-and-indigenous quality, the neutral color of Native-American and Aboriginal-Australian indigenous-and-original earth-and-mineral-pigment ceremonial-craft tradition. Sits at the neutral-and-traditional end of the grid, parallel to indigenous and aboriginal in usage.

Tombstone
noun

English tombe-stān, burial-stone — the deep-cool-gray slate-or-granite memorial-stone of medieval-and-modern European churchyard burial-tradition, particularly the Cotswold-Limestone and Welsh-Slate hand-carved tombstone-and-headstone. Tombstone color refers to a Welsh-Bethesda-slate 19th-century churchyard tombstone face in November-overcast rain: a dark cool-gray with the matte finish of Cambrian-period roofing-slate.

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.

#150537
Original
#001238
Protanopia
#000f36
Deuteranopia
#08131e
Tritanopia
#0c0c0c
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
18.94:1
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
1.11:1

Wide gamut

Display P3 representation

The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.

sRGB hex
sRGB hex
##150537
Display P3
Display P3
color(display-p3 0.0739 0.0222 0.2061)
P3 has subtle headroomOKLCH chroma 0.090

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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