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Artisanal Bittern

#170720
Notes

Artisanal Bittern (#170720) 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 (278°, 64%, 8%) 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 lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#170720
RGB
rgb(23, 7, 32)
HSL
hsl(278, 64%, 8%)
HWB
hwb(278 3% 87%)
OKLCH
oklch(17.0% 0.054 311.8)
P3
color(display-p3 0.0818 0.0302 0.1202)
HSV
hsv(278, 78%, 13%)
LAB
lab(3.96% 11.20 -12.60)
LCH
lch(3.96% 16.86 311.62)
CMYK
cmyk(28%, 78%, 0%, 87%)

Etymology

Artisanal
adjective

Italian artigiano, craftsman — adjectival suffix -al, derived from Latin artītiānus. As a color modifier, artisanal implies a neutral-and-small-batch-and-handcraft quality, the neutral color of farm-to-table-and-craft-bakery small-batch-and-quality-handcraft food-and-textile-and-pottery surface-finish. Sits at the neutral-and-traditional end of the grid, parallel to handcrafted and crafted in usage.

Bittern
noun

Eurasian Botaurus stellaris — a Ardeidae heron-family species of European reed-bed wetlands, whose deep-bronze-and-black mottled plumage and boom-call camouflage it among the Phragmites reed-stems. Bittern color refers to a Botaurus stellaris dorsal feather field: a saturated, slightly cool deep black with the matte finish of melanin-and-bronze structurally colored feather barbs.

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.

#170720
Original
#020d21
Protanopia
#060e1f
Deuteranopia
#160b12
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
19.31:1
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
##170720
Display P3
Display P3
color(display-p3 0.0818 0.0302 0.1202)
Inside sRGBOKLCH chroma 0.054

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.

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