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Ominous Catalina

#6b174c
Notes

Ominous Catalina (#6B174C) is a deep magenta 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 (322°, 65%, 25%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. 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
#6b174c
RGB
rgb(107, 23, 76)
HSL
hsl(322, 65%, 25%)
HWB
hwb(322 9% 58%)
OKLCH
oklch(36.6% 0.130 346.8)
P3
color(display-p3 0.3848 0.1186 0.2912)
HSV
hsv(322, 79%, 42%)
LAB
lab(24.52% 41.47 -11.22)
LCH
lch(24.52% 42.96 344.86)
CMYK
cmyk(0%, 79%, 29%, 58%)

Etymology

Ominous
adjective

Latin ōminōsus, full of foreboding — derived from omen. As a color modifier, ominous implies a deep-and-threatening atmospheric-foreboding quality, the dark cool-gray of Goyaesque storm-laden sky. Sits at the deep-and-threatening end of the grid, parallel to foreboding and menacing in tone.

Catalina
noun

Californian Catalina silver lace (Eriogonum giganteum) — a Polygonaceae shrub native to Santa Catalina Island off the southern California coast, with deep-magenta clustered terminal flower-heads in late summer. Catalina color refers to a fully bloomed Eriogonum giganteum terminal cluster on the Catalina Island chaparral: a saturated, slightly cool deep magenta with the matte finish of dense small radiating flower-heads.

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.

#6b174c
Original
#23314d
Protanopia
#3c3f4a
Deuteranopia
#73142f
Tritanopia
#2d2d2d
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
11.34:1
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
1.85:1

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
##6B174C
Display P3
Display P3
color(display-p3 0.3848 0.1186 0.2912)
P3 has subtle headroomOKLCH chroma 0.130

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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