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Bespoke Kuro

#07031d
Notes

Bespoke Kuro (#07031D) is a deep blue 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 (249°, 81%, 6%) 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 yellow. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#07031d
RGB
rgb(7, 3, 29)
HSL
hsl(249, 81%, 6%)
HWB
hwb(249 1% 89%)
OKLCH
oklch(13.2% 0.057 285.4)
P3
color(display-p3 0.0247 0.0123 0.1079)
HSV
hsv(249, 90%, 11%)
LAB
lab(1.80% 6.26 -13.61)
LCH
lch(1.80% 14.98 294.70)
CMYK
cmyk(76%, 90%, 0%, 89%)

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.

Kuro
noun

Japanese 黒, black — the deep matte saturated black of sumi-e ink-on-rice-paper and the kuromontsuki (black-crested-five-mark) formal kimono. Kuro color refers to a freshly kuromontsuki-dyed silk garment: a saturated, slightly cool deep black with the matte finish of multi-bath kachi-iro indigo-overdye on woven silk. Cooler than sumi (pure ink-black) and warmer than synthetic dye-blacks.

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.

#07031d
Original
#00071e
Protanopia
#00061c
Deuteranopia
#01080e
Tritanopia
#060606
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
20.20:1
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
1.04:1

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
##07031D
Display P3
Display P3
color(display-p3 0.0247 0.0123 0.1079)
Inside sRGBOKLCH chroma 0.057

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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