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Bespoke Naphtha

#150430
Notes

Bespoke Naphtha (#150430) 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 (263°, 85%, 10%) 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
#150430
RGB
rgb(21, 4, 48)
HSL
hsl(263, 85%, 10%)
HWB
hwb(263 2% 81%)
OKLCH
oklch(17.6% 0.082 294.8)
P3
color(display-p3 0.0734 0.0184 0.1797)
HSV
hsv(263, 92%, 19%)
LAB
lab(4.15% 18.37 -24.55)
LCH
lch(4.15% 30.66 306.80)
CMYK
cmyk(56%, 92%, 0%, 81%)

Etymology

Bespoke
adjective

Old English be- (about) plus sprecan (to speak) — past-participle of bespeak. As a color modifier, bespoke implies a neutral-and-custom-made-and-tailored quality, the neutral color of Savile-Row-tailoring custom-made-and-hand-tailored gentleman's-suit-and-shirtmaking craft-finish. Sits at the neutral-and-traditional end of the grid, parallel to custom and tailored in usage.

Naphtha
noun

Greek νάφθα, naphtha — the deep-iridescent-black light-petroleum-distillate fraction extracted from the upper-tower of crude-oil refining, the Greek-fire incendiary-warfare base of the Byzantine navy. Naphtha color refers to a freshly extracted Greek-fire-grade naphtha sample in a clear-glass beaker: a saturated, slightly cool deep black with the iridescent satin finish of multi-component light-petroleum-distillate.

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.

#150430
Original
#000f31
Protanopia
#000e2f
Deuteranopia
#0d0f19
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
19.23:1
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
1.09:1

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
##150430
Display P3
Display P3
color(display-p3 0.0734 0.0184 0.1797)
P3 has subtle headroomOKLCH chroma 0.082

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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