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Native Bluestone

#210228
Notes

Native Bluestone (#210228) is a deep violet 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 (289°, 90%, 8%) 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 green. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#210228
RGB
rgb(33, 2, 40)
HSL
hsl(289, 90%, 8%)
HWB
hwb(289 1% 84%)
OKLCH
oklch(18.4% 0.081 319.9)
P3
color(display-p3 0.1156 0.0141 0.1501)
HSV
hsv(289, 95%, 16%)
LAB
lab(4.70% 21.50 -17.55)
LCH
lch(4.70% 27.75 320.78)
CMYK
cmyk(18%, 95%, 0%, 84%)

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.

Bluestone
noun

Preseli bluestone — the deep-gray-blue spotted-dolerite boulders sourced from the Preseli Hills of West Wales and transported 240 km to Stonehenge (c. 2900 BCE). Bluestone color refers to a Stonehenge inner-circle bluestone face in midday sun: a dark cool-gray with the matte finish of spotted-dolerite with feldspar-and-pyroxene phenocrysts on a Neolithic-quarried boulder.

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.

#210228
Original
#000e29
Protanopia
#041127
Deuteranopia
#210814
Tritanopia
#0b0b0b
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
19.02:1
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
1.10:1

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
##210228
Display P3
Display P3
color(display-p3 0.1156 0.0141 0.1501)
P3 has subtle headroomOKLCH chroma 0.081

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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