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Plain Briquette

#150418
Notes

Plain Briquette (#150418) 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 (291°, 71%, 5%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. 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
#150418
RGB
rgb(21, 4, 24)
HSL
hsl(291, 71%, 5%)
HWB
hwb(291 2% 91%)
OKLCH
oklch(15.3% 0.050 321.9)
P3
color(display-p3 0.0734 0.0184 0.0899)
HSV
hsv(291, 83%, 9%)
LAB
lab(2.82% 9.04 -7.97)
LCH
lch(2.82% 12.05 318.62)
CMYK
cmyk(12%, 83%, 0%, 91%)

Etymology

Plain
adjective

Latin planus, flat, level — used as a color modifier since the medieval period for hues that read as undecorated and direct. Plain white, plain blue: moderate saturation, no shift, no surface effect. Sits in the crisp-bucket center, with the implication of restraint rather than absence.

Briquette
noun

French briquette, little brick — the deep-glossy-black compressed-and-shaped charcoal-and-binder fuel pellet, particularly the Kingsford-style barbecue-charcoal briquette of mid-20th-century American grill culture. Briquette color refers to a freshly fired Kingsford charcoal briquette on an outdoor kettle-grill grate: a saturated, slightly cool deep black with the matte finish of carbon-pyrolysis-binder pellet.

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.

#150418
Original
#020919
Protanopia
#060b17
Deuteranopia
#15060c
Tritanopia
#090909
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
19.77:1
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
1.06:1

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
##150418
Display P3
Display P3
color(display-p3 0.0734 0.0184 0.0899)
Inside sRGBOKLCH chroma 0.050

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

Related Colors

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