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Stately Outremer

#437acf
Notes

Stately Outremer (#437ACF) is a true azure with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (216°, 59%, 54%) 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
#437acf
RGB
rgb(67, 122, 207)
HSL
hsl(216, 59%, 54%)
HWB
hwb(216 26% 19%)
OKLCH
oklch(58.4% 0.143 258.9)
P3
color(display-p3 0.3147 0.4731 0.7877)
HSV
hsv(216, 68%, 81%)
LAB
lab(51.40% 9.50 -49.32)
LCH
lch(51.40% 50.22 280.90)
CMYK
cmyk(68%, 41%, 0%, 19%)

Etymology

Stately
adjective

An adjectival form of state, condition of dignity. Used as a color modifier since the seventeenth century for the deep saturated jewel tones of formal ceremony — the deep blue of a robes-of-state, the deep red of a state-banquet velvet. Sits in the bold-and-formal corner alongside imperial and royal, with slightly less institutional weight.

Outremer
noun

The French word for ultramarine — literally beyond-the-sea, naming the lapis-lazuli pigment imported from Afghanistan via Mediterranean trade routes. Outremer names the same pigment as English ultramarine but with the French Renaissance-and-after register. The color refers to a freshly mixed outremer pigment in oil: a saturated, slightly violet-shifted deep blue.

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.

#437acf
Original
#5381d2
Protanopia
#3c74cd
Deuteranopia
#008e9a
Tritanopia
#747474
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
4.27:1
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
4.92:1

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
##437ACF
Display P3
Display P3
color(display-p3 0.3147 0.4731 0.7877)
P3 has subtle headroomOKLCH chroma 0.143

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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