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Gallant Gloaming

#584bdf
Notes

Gallant Gloaming (#584BDF) 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 (245°, 70%, 58%) 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 yellow. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#584bdf
RGB
rgb(88, 75, 223)
HSL
hsl(245, 70%, 58%)
HWB
hwb(245 29% 13%)
OKLCH
oklch(51.9% 0.216 279.7)
P3
color(display-p3 0.3367 0.2960 0.8426)
HSV
hsv(245, 66%, 87%)
LAB
lab(41.90% 47.12 -73.73)
LCH
lch(41.90% 87.51 302.58)
CMYK
cmyk(61%, 66%, 0%, 13%)

Etymology

Gallant
adjective

Old French galant, brave / charming — present-participle of galer (to make merry). As a color modifier, gallant implies a saturated-and-chivalrous-and-confident quality, the deep-rich color of Three-Musketeers and Cyrano-de-Bergerac swashbuckling adventure tradition. Sits at the bold-and-chivalrous end of the grid, parallel to valiant and heroic.

Gloaming
noun

Scots and Northern English gloming, twilight — derived from Old English glōmung, related to glōm (gloom) but specifically denoting the half-light between sunset and full dark. Gloaming color refers to a Highland-loch eastern sky at the gloaming: a saturated, slightly cool deep blue-violet with the optical complexity of Rayleigh-scattered atmospheric Belt of Venus light over a wet Scottish horizon.

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.

#584bdf
Original
#0068e4
Protanopia
#005ddc
Deuteranopia
#00728f
Tritanopia
#585858
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).
AAon White
6.02:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
3.49:1

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
##584BDF
Display P3
Display P3
color(display-p3 0.3367 0.2960 0.8426)
P3 has visible headroomOKLCH chroma 0.216

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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