colors
Back to gallery

Bold Mass Ruby

#d41f51
Notes

Bold Mass Ruby (#D41F51) is a true red with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (343°, 74%, 48%) 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 teal. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#d41f51
RGB
rgb(212, 31, 81)
HSL
hsl(343, 74%, 48%)
HWB
hwb(343 12% 17%)
OKLCH
oklch(56.5% 0.210 13.2)
HSV
hsv(343, 85%, 83%)
LAB
lab(46.41% 68.09 19.67)
LCH
lch(46.41% 70.87 16.11)
CMYK
cmyk(0%, 85%, 62%, 17%)

Etymology

Bold
adjective

Old English beald, brave, courageous — a quality word that crossed over to color in the late seventeenth century. Bold describes a color that asserts itself: high saturation combined with mid lightness, where the hue presents itself without compromise. Sits at the center of the bold-bucket grid, near strong and rich. Closer to a presence word than a pigment word.

Mass
modifier

Latin missa, Mass-of-the-Eucharist. As a color modifier, mass implies a Eucharistic-and-liturgical-feast quality, the visual register of Roman-Catholic-and-Anglican-Mass Eucharistic-and-liturgical-feast altar-and-vestment-and-incense liturgical-Mass surfaces under Mass-and-Eucharistic-feast altar-candle-and-incense light. Sits at the modifier-and-time end of the grid, parallel to vigil and vesper 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.

#d41f51
Original
#585752
Protanopia
#857b4c
Deuteranopia
#e80037
Tritanopia
#494949
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).
AAon White
5.10:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
4.11:1

Related Colors

Canvas