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Gracious Kachikoshi

#2f0103
Notes

Gracious Kachikoshi (#2F0103) is a deep red 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 (357°, 96%, 9%) 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 cyan. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#2f0103
RGB
rgb(47, 1, 3)
HSL
hsl(357, 96%, 9%)
HWB
hwb(357 0% 82%)
OKLCH
oklch(19.4% 0.076 24.9)
P3
color(display-p3 0.1658 0.0160 0.0173)
HSV
hsv(357, 98%, 18%)
LAB
lab(5.72% 22.81 7.78)
LCH
lch(5.72% 24.10 18.83)
CMYK
cmyk(0%, 98%, 94%, 82%)

Etymology

Gracious
adjective

Latin grātiōsus, full-of-grace — adjectival suffix -ous. As a color modifier, gracious implies a neutral-and-courteous-and-warm quality, the neutral color of Edwardian-and-Belle-Époque gracious-and-formal-hosting Belle-Époque-Edwardian interior-decoration-and-textile coordinated-color tone. Sits at the neutral-and-friendly end of the grid, parallel to cordial and courteous in usage.

Kachikoshi
noun

Japanese 褐返, charcoal-overdye — a late-Edo-period color name for the deep-iron-gray of kachi-iro (vat-blue)-overdyed-on-charcoal cotton, popular among samurai-class everyday wear. Kachikoshi color refers to a samurai-class kachikoshi-dyed Edo-komon fine-pattern cotton: a dark blue-gray with the matte finish of multi-bath aizome-and-charcoal overdye on commoner cotton.

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.

#2f0103
Original
#0e0c03
Protanopia
#1a1602
Deuteranopia
#350002
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
18.64:1
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
1.13:1

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
##2F0103
Display P3
Display P3
color(display-p3 0.1658 0.0160 0.0173)
Inside sRGBOKLCH chroma 0.076

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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