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Stalwart Venus Royal

#1f3aa3
Notes

Stalwart Venus Royal (#1F3AA3) is a true blue 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 (228°, 68%, 38%) 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
#1f3aa3
RGB
rgb(31, 58, 163)
HSL
hsl(228, 68%, 38%)
HWB
hwb(228 12% 36%)
OKLCH
oklch(40.2% 0.172 266.8)
P3
color(display-p3 0.1464 0.2248 0.6154)
HSV
hsv(228, 81%, 64%)
LAB
lab(29.31% 29.91 -59.31)
LCH
lch(29.31% 66.43 296.76)
CMYK
cmyk(81%, 64%, 0%, 36%)

Etymology

Stalwart
adjective

Old English stǣl-wyrðe, stable-and-worthy. As a color modifier, stalwart implies a saturated-and-loyal-and-firm quality where the hue carries the dependable-and-trustworthy visual presence of a Knight-Templar guard. Sits at the bold-and-firm end of the grid, parallel to steadfast and firm 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.

Royal
noun

The blue of European royal court dress and regalia from the late seventeenth century forward — the color of British peers' robes, French royal sashes, the lining of the crown-jewel cases. The color refers to a saturated, slightly violet-shifted blue with the matte finish of velvet or melton wool dyed to maximum intensity: deeper than cornflower, warmer than ultramarine, with the heraldic weight of a color reserved for monarchs and the official Crown.

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.

#1f3aa3
Original
#004ba6
Protanopia
#003fa1
Deuteranopia
#005669
Tritanopia
#3c3c3c
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
9.58:1
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
2.19:1

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
##1F3AA3
Display P3
Display P3
color(display-p3 0.1464 0.2248 0.6154)
P3 has subtle headroomOKLCH chroma 0.172

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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