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Unyielding Venus Crimson

#991e48
Notes

Unyielding Venus Crimson (#991E48) 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 (340°, 67%, 36%) 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
#991e48
RGB
rgb(153, 30, 72)
HSL
hsl(340, 67%, 36%)
HWB
hwb(340 12% 40%)
OKLCH
oklch(45.5% 0.159 6.5)
P3
color(display-p3 0.5510 0.1646 0.2836)
HSV
hsv(340, 80%, 60%)
LAB
lab(34.34% 51.86 6.94)
LCH
lch(34.34% 52.32 7.62)
CMYK
cmyk(0%, 80%, 53%, 40%)

Etymology

Unyielding
adjective

Old English un- (negation) plus gildan (to give-up). As a color modifier, unyielding implies a saturated-and-uncompromising quality where the hue refuses to fade-or-shift under any visual pressure. Sits at the bold-and-resilient end of the grid, parallel to indomitable and adamant in usage.

Venus
modifier

Latin Venus, Roman-goddess-and-second-planet. As a color modifier, venus implies a Roman-goddess-and-second-planet-and-morning-evening-star quality, the visual register of Botticelli-Birth-of-Venus-and-Pompeii-fresco hand-Roman-goddess-and-second-planet-and-morning-evening-star Botticelli-Birth-of-Venus-and-Pompeii-fresco-and-Aphrodite-Hellenic venus-and-Roman-goddess-and-second-planet surfaces under Botticelli-Birth-of-Venus-and-Pompeii-fresco-and-Aphrodite-Hellenic Florentine-and-Pompeian dawn-and-dusk-evening-star-light. Sits at the modifier-and-zodiac end of the grid, parallel to jupiter and saturn in usage.

Crimson
noun

From the Old Spanish cremesin, itself from the Arabic qirmiz — the kermes scale insect, dried and ground into a brilliant carmine dye prized in the medieval Mediterranean. For centuries the most expensive red on a draper's shelf, reserved for cardinals, kings, and the cloth that gave English the word crimson. Cooler than scarlet, deeper than rose; the color of pomegranate seeds and a serious occasion.

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.

#991e48
Original
#3e4149
Protanopia
#5f5945
Deuteranopia
#a70031
Tritanopia
#3b3b3b
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
7.97:1
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
2.63:1

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
##991E48
Display P3
Display P3
color(display-p3 0.5510 0.1646 0.2836)
P3 has subtle headroomOKLCH chroma 0.159

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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