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Menacing Cleome

#3f054b
Notes

Menacing Cleome (#3F054B) is a deep violet 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 (290°, 88%, 16%) places it in the highly saturated band at a dark 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 green. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#3f054b
RGB
rgb(63, 5, 75)
HSL
hsl(290, 88%, 16%)
HWB
hwb(290 2% 71%)
OKLCH
oklch(27.2% 0.123 319.7)
P3
color(display-p3 0.2242 0.0403 0.2828)
HSV
hsv(290, 93%, 29%)
LAB
lab(13.67% 36.43 -28.20)
LCH
lch(13.67% 46.07 322.26)
CMYK
cmyk(16%, 93%, 0%, 71%)

Etymology

Menacing
adjective

Latin minārī, to threaten — present-participle of menace, sharing root with minatory. As a color modifier, menacing implies a deep-and-threatening-and-imposing quality, the dark cool-gray of looming storm-cloud-and-imposing-cliff visual-presence. Sits at the deep-and-threatening end of the grid, parallel to ominous and foreboding in tone.

Cleome
noun

Spider flower (Cleome hassleriana) — a tall South American annual cultivated worldwide for its long-stamened pink-and-violet airy racemes. Cleome color refers to a fully bloomed Cleome hassleriana terminal raceme: a saturated, slightly cool deep violet with the velvet finish of fresh four-petaled long-stamened spider-flower corollas. The genus name comes from the Greek kleíō, to enclose, after the bud-cluster structure.

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.

#3f054b
Original
#001f4d
Protanopia
#0c254a
Deuteranopia
#3f162a
Tritanopia
#161616
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
15.73:1
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
1.33:1

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
##3F054B
Display P3
Display P3
color(display-p3 0.2242 0.0403 0.2828)
P3 has subtle headroomOKLCH chroma 0.123

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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