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Hefty Cumin Ruby

#90001f
Notes

Hefty Cumin Ruby (#90001F) 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 (347°, 100%, 28%) 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 teal. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#90001f
RGB
rgb(144, 0, 31)
HSL
hsl(347, 100%, 28%)
HWB
hwb(347 0% 44%)
OKLCH
oklch(41.3% 0.166 21.2)
P3
color(display-p3 0.5162 0.0950 0.1393)
HSV
hsv(347, 100%, 56%)
LAB
lab(29.49% 53.01 27.09)
LCH
lch(29.49% 59.53 27.07)
CMYK
cmyk(0%, 100%, 78%, 44%)

Etymology

Hefty
adjective

Old English hefig, heavy — adjectival suffix -y. As a color modifier, hefty implies a saturated-and-substantial-and-weighty quality where the hue carries the visual heft of a hand-cast pig-iron object. Sits at the bold-and-weighty end of the grid, parallel to substantial and weighty in usage.

Cumin
modifier

Greek κύμινον, aromatic-Levantine-seed. As a color modifier, cumin implies a warm-Levantine-and-North-African-and-Mughal quality, the visual register of Levantine-and-North-African-and-Mughal-cumin hand-warm-Levantine-and-North-African-and-Mughal Levantine-and-North-African-and-Mughal-cumin-and-Aleppo-and-Marrakesh cumin-and-warm-Levantine surfaces under Levantine-and-North-African-and-Mughal-cumin-and-Aleppo-and-Marrakesh Aleppo-and-Marrakesh-and-Lahore Levantine-spice-light. Sits at the modifier-and-flavor end of the grid, parallel to caraway and pepper in usage.

Ruby
noun

From the Latin ruber — simply, red. The gemstone is a chromium-tinged corundum, harder than anything in nature except diamond, and so saturated that a fine Burmese pigeon's blood ruby at auction outpaces a comparable diamond by weight. The color borrows the gem's confidence: a clear, glassy red without the brown of garnet or the blue of crimson.

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.

#90001f
Original
#38331e
Protanopia
#594f19
Deuteranopia
#9f0011
Tritanopia
#212121
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
9.52:1
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
2.21:1

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
##90001F
Display P3
Display P3
color(display-p3 0.5162 0.0950 0.1393)
P3 has subtle headroomOKLCH chroma 0.166

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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