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Fortified Grace Royal

#5b7cdc
Notes

Fortified Grace Royal (#5B7CDC) 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 (225°, 65%, 61%) 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
#5b7cdc
RGB
rgb(91, 124, 220)
HSL
hsl(225, 65%, 61%)
HWB
hwb(225 36% 14%)
OKLCH
oklch(60.8% 0.150 267.5)
P3
color(display-p3 0.3838 0.4827 0.8368)
HSV
hsv(225, 59%, 86%)
LAB
lab(53.82% 16.99 -52.74)
LCH
lch(53.82% 55.41 287.85)
CMYK
cmyk(59%, 44%, 0%, 14%)

Etymology

Fortified
adjective

Latin fortificāre, to make strong — past-participle of fortify. As a color modifier, fortified implies a saturated-and-strengthened-and-defensive quality, the deep-rich color of Vauban-style military-fortification stone-and-earth rampart-and-bastion architecture. Sits at the bold-and-fortified end of the grid, parallel to bastioned and armored.

Grace
modifier

Latin gratia, favor-or-thankfulness. As a color modifier, grace implies a flowing-and-elegant-and-blessed quality, the visual register of Botticelli-Three-Graces-and-Apollonian-grace hand-flowing-and-elegant-and-blessed Botticelli-Three-Graces-and-Apollonian-and-Renaissance-classical graced-and-flowing-and-elegant-and-blessed surfaces under Botticelli-Three-Graces-and-Apollonian-and-Renaissance-classical chiton-and-laurel-wreath-and-fountain Florentine-pavilion-light. Sits at the modifier-and-mood end of the grid, parallel to charm and bliss 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.

#5b7cdc
Original
#5187e0
Protanopia
#3e7bda
Deuteranopia
#0091a1
Tritanopia
#7c7c7c
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).
AA Largeon White
3.92:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
5.36:1

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
##5B7CDC
Display P3
Display P3
color(display-p3 0.3838 0.4827 0.8368)
P3 has subtle headroomOKLCH chroma 0.150

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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