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Saturated Mira Ruby

#991819
Notes

Saturated Mira Ruby (#991819) is a true 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 (360°, 73%, 35%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. 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
#991819
RGB
rgb(153, 24, 25)
HSL
hsl(360, 73%, 35%)
HWB
hwb(360 9% 40%)
OKLCH
oklch(44.1% 0.164 26.9)
P3
color(display-p3 0.5503 0.1491 0.1281)
HSV
hsv(360, 84%, 60%)
LAB
lab(32.91% 50.94 34.86)
LCH
lch(32.91% 61.72 34.38)
CMYK
cmyk(0%, 84%, 84%, 40%)

Etymology

Saturated
adjective

From the Latin saturatus, past participle of saturare, to fill. A technical color term in modern usage — saturation is one of the three axes of HSL (with hue and lightness). As a modifier, saturated implies that the hue is at or near its maximum chromatic intensity. Sits at the bold-and-bright top of the grid.

Mira
modifier

Latin mira, wonderful-or-marvelous. As a color modifier, mira implies a variable-pulsing-and-red-giant-and-wondrous quality, the visual register of Cetus-Whale-and-variable-Mira-the-Wonder hand-variable-pulsing-and-red-giant-and-wondrous Cetus-Whale-and-variable-Mira-and-Hevelius-discovery mira-and-variable-pulsing-and-red-giant-and-wondrous surfaces under Cetus-Whale-and-variable-Mira-and-Hevelius-discovery 332-day-cycle-and-deep-red-pulse pulsing-stellar-light. Sits at the modifier-and-cosmic end of the grid, parallel to nova and pulsar 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.

#991819
Original
#433c17
Protanopia
#625712
Deuteranopia
#a9001b
Tritanopia
#333333
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
8.40:1
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
2.50:1

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
##991819
Display P3
Display P3
color(display-p3 0.5503 0.1491 0.1281)
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.

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