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Bold Lyra Ruby

#cb4b3a
Notes

Bold Lyra Ruby (#CB4B3A) is a true red with a warm character. It leans warm, pulling light toward red, orange, and yellow. Naturally inviting, it suits editorial and hospitality contexts. Its HSL profile (7°, 58%, 51%) 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
#cb4b3a
RGB
rgb(203, 75, 58)
HSL
hsl(7, 58%, 51%)
HWB
hwb(7 23% 20%)
OKLCH
oklch(58.4% 0.166 30.3)
P3
color(display-p3 0.7378 0.3279 0.2572)
HSV
hsv(7, 71%, 80%)
LAB
lab(49.54% 49.83 36.84)
LCH
lch(49.54% 61.97 36.47)
CMYK
cmyk(0%, 63%, 71%, 20%)

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.

Lyra
modifier

Greek λύρα, lyre-of-Orpheus. As a color modifier, lyra implies a small-summer-constellation-and-Orpheus-lyre quality, the visual register of summer-Lyra-and-Orpheus-lyre hand-small-summer-constellation-and-Orpheus-lyre summer-Lyra-and-Orpheus-lyre-and-Bortle-1-sky lyra-and-small-summer-constellation-and-Orpheus-lyre surfaces under summer-Lyra-and-Orpheus-lyre-and-Bortle-1-sky July-and-August-summer-zenith ring-nebula-and-stellar-light. Sits at the modifier-and-cosmic end of the grid, parallel to vega and cygnus 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.

#cb4b3a
Original
#6e6437
Protanopia
#8e8036
Deuteranopia
#df2c48
Tritanopia
#656565
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
4.56:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
4.61:1

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
##CB4B3A
Display P3
Display P3
color(display-p3 0.7378 0.3279 0.2572)
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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