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Resolute Heliconia

#a4137d
Notes

Resolute Heliconia (#A4137D) is a true 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 (316°, 79%, 36%) places it in the highly saturated band at a mid 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
#a4137d
RGB
rgb(164, 19, 125)
HSL
hsl(316, 79%, 36%)
HWB
hwb(316 7% 36%)
OKLCH
oklch(48.8% 0.199 342.8)
P3
color(display-p3 0.5895 0.1456 0.4772)
HSV
hsv(316, 88%, 64%)
LAB
lab(37.56% 62.76 -21.89)
LCH
lch(37.56% 66.47 340.77)
CMYK
cmyk(0%, 88%, 24%, 36%)

Etymology

Resolute
adjective

From the Latin resolutus, unwavering — used as a color modifier in literary contexts for hues that read as committed and unmoving. Resolute blue, resolute green: the saturation is full, the hue holds its position without shifting under different light. Sits in the bold-bucket center alongside strong and true, with slightly more focus on stability than presence.

Heliconia
noun

Central- and South-American lobster-claw (Heliconia rostrata) — a tropical Heliconiaceae perennial cultivated worldwide for its pendulous rostrate-bracted inflorescences in deep-magenta-and-yellow. Heliconia color refers to a fully developed Heliconia rostrata pendulous inflorescence: a saturated, slightly cool deep magenta with the matte finish of waxy bract-clusters. Named for Mount Helicon, the muses' Greek-mythological mountain.

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.

#a4137d
Original
#284a7f
Protanopia
#57607a
Deuteranopia
#af144a
Tritanopia
#393939
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
7.08:1
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
2.97:1

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
##A4137D
Display P3
Display P3
color(display-p3 0.5895 0.1456 0.4772)
P3 has visible headroomOKLCH chroma 0.199

This color is chromatic enough that authoring it as P3 native (instead of clamping to sRGB) gives a perceptibly more saturated render on wide-gamut displays — modern Macs, iPhones, iPads, and most recent OLED laptops.

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