colors
Back to gallery

Heavy Caraway Ruby

#900615
Notes

Heavy Caraway Ruby (#900615) 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 (353°, 92%, 29%) 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
#900615
RGB
rgb(144, 6, 21)
HSL
hsl(353, 92%, 29%)
HWB
hwb(353 2% 44%)
OKLCH
oklch(41.4% 0.164 25.3)
P3
color(display-p3 0.5166 0.1062 0.1105)
HSV
hsv(353, 96%, 56%)
LAB
lab(29.70% 51.76 33.40)
LCH
lch(29.70% 61.60 32.83)
CMYK
cmyk(0%, 96%, 85%, 44%)

Etymology

Heavy
adjective

Old English hefig, weighty — cognate with heave. Used as a color modifier since at least the seventeenth century to indicate weight in saturation as much as value: heavy with pigment, heavy-bodied. In the engine's adjective grid, heavy sits alongside deep and plush in the dark-and-saturated quadrant. Closer to a fabric description than a pure value word.

Caraway
modifier

Arabic al-karawiyā, aromatic-rye-bread-seed. As a color modifier, caraway implies an aromatic-rye-bread-and-Central-European-seed quality, the visual register of Bavarian-and-Central-European-caraway hand-aromatic-rye-bread-and-Central-European-seed Bavarian-and-Central-European-caraway-and-Czech-and-Hungarian-rye caraway-and-aromatic-rye-bread surfaces under Bavarian-and-Central-European-caraway-and-Czech-and-Hungarian-rye Bavaria-and-Bohemia-and-Hungary Central-European-rye-light. Sits at the modifier-and-flavor end of the grid, parallel to cumin and anise 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.

#900615
Original
#3a3413
Protanopia
#5a500d
Deuteranopia
#9f000f
Tritanopia
#242424
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
9.45:1
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
2.22:1

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
##900615
Display P3
Display P3
color(display-p3 0.5166 0.1062 0.1105)
P3 has subtle headroomOKLCH chroma 0.164

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.

Related Colors

Canvas