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Lordly Nova Ruby

#b21203
Notes

Lordly Nova Ruby (#B21203) 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 (5°, 97%, 35%) places it in the highly saturated band at a mid 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
#b21203
RGB
rgb(178, 18, 3)
HSL
hsl(5, 97%, 35%)
HWB
hwb(5 1% 30%)
OKLCH
oklch(48.5% 0.191 30.2)
HSV
hsv(5, 98%, 70%)
LAB
lab(37.68% 58.90 50.39)
LCH
lch(37.68% 77.52 40.55)
CMYK
cmyk(0%, 90%, 98%, 30%)

Etymology

Lordly
adjective

Old English hlāford-līc, lord-like — adjectival suffix -ly. As a color modifier, lordly implies a saturated-and-aristocratic-and-haughty quality, the deep-rich color of pre-modern English-and-French manorial-aristocracy livery and hereditary-estate household-textile. Sits at the bold-and-aristocratic end of the grid, parallel to princely and patrician.

Nova
modifier

Latin nova, new-or-newly-bright-star. As a color modifier, nova implies a sudden-bright-and-newly-erupted-and-flaring quality, the visual register of Tycho-Brahe-and-Kepler-supernova-nova hand-sudden-bright-and-newly-erupted Tycho-Brahe-and-Kepler-and-Cassiopeia-A nova-and-sudden-bright-and-flaring surfaces under Tycho-Brahe-and-Kepler-and-Cassiopeia-A late-Renaissance-observatory-and-naked-eye sudden-stellar-light. Sits at the modifier-and-cosmic end of the grid, parallel to flare and spark 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.

#b21203
Original
#4d4300
Protanopia
#726500
Deuteranopia
#c50013
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
7.05:1
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
2.98:1

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