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Resounding Hepatica

#2740c0
Notes

Resounding Hepatica (#2740C0) is a true blue with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (230°, 66%, 45%) 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 amber. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#2740c0
RGB
rgb(39, 64, 192)
HSL
hsl(230, 66%, 45%)
HWB
hwb(230 15% 25%)
OKLCH
oklch(44.4% 0.201 267.9)
P3
color(display-p3 0.1748 0.2484 0.7247)
HSV
hsv(230, 80%, 75%)
LAB
lab(33.78% 37.52 -69.23)
LCH
lch(33.78% 78.75 298.46)
CMYK
cmyk(80%, 67%, 0%, 25%)

Etymology

Resounding
adjective

Latin resonāre, to echo back — present-participle of resound. As a color modifier, resounding implies a saturated-and-echoing-and-imposing quality where the hue reverberates visually like a cathedral-bell ring. Sits at the bold-and-resonant end of the grid, parallel to resonant and booming in usage.

Hepatica
noun

The genus Hepaticaliverwort flower, European-and-North-American spring-blooming perennials with saturated deep-blue flowers among the earliest to bloom in temperate forests. The color refers to a fresh H. nobilis in March: a saturated, slightly cool deep blue with the satin finish of six-tepaled spring flower.

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.

#2740c0
Original
#0057c4
Protanopia
#0048be
Deuteranopia
#00637a
Tritanopia
#444444
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
8.14:1
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
2.58:1

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
##2740C0
Display P3
Display P3
color(display-p3 0.1748 0.2484 0.7247)
P3 has visible headroomOKLCH chroma 0.201

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.

Related Colors

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