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Folksy Negro

#150228
Notes

Folksy Negro (#150228) 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 (270°, 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 lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#150228
RGB
rgb(21, 2, 40)
HSL
hsl(270, 90%, 8%)
HWB
hwb(270 1% 84%)
OKLCH
oklch(16.3% 0.077 302.8)
P3
color(display-p3 0.0725 0.0108 0.1495)
HSV
hsv(270, 95%, 16%)
LAB
lab(3.22% 15.38 -19.97)
LCH
lch(3.22% 25.21 307.60)
CMYK
cmyk(47%, 95%, 0%, 84%)

Etymology

Folksy
adjective

English folk — adjectival suffix -sy. As a color modifier, folksy implies a neutral-and-down-home-and-traditional quality, the neutral color of American-Folk-Art and English-and-Welsh-cottage hand-spun-and-hand-woven traditional-craft textile-and-decorative surface. Sits at the neutral-and-traditional end of the grid, parallel to homespun and homey in usage.

Negro
noun

Spanish for black — derived from Latin niger, shining black (distinct from ater, dull black). Negro color refers to a Spanish-Habsburg capa of negro de humo (lamp-black) dye: a saturated, slightly cool deep black with the matte finish of multi-bath carbon-and-iron-mordant dye on woven Castilian wool. The Spanish color tradition distinguishes negro azabache (jet-black) from negro carbón (charcoal-black).

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.

#150228
Original
#000b29
Protanopia
#000c27
Deuteranopia
#110a14
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
19.60:1
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
1.07:1

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
##150228
Display P3
Display P3
color(display-p3 0.0725 0.0108 0.1495)
Inside sRGBOKLCH chroma 0.077

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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