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Sinewy Brooklyn

#283ea3
Notes

Sinewy Brooklyn (#283EA3) is a true blue 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 (229°, 61%, 40%) 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
#283ea3
RGB
rgb(40, 62, 163)
HSL
hsl(229, 61%, 40%)
HWB
hwb(229 16% 36%)
OKLCH
oklch(41.4% 0.165 268.6)
P3
color(display-p3 0.1756 0.2408 0.6158)
HSV
hsv(229, 75%, 64%)
LAB
lab(30.74% 28.18 -56.97)
LCH
lch(30.74% 63.56 296.32)
CMYK
cmyk(75%, 62%, 0%, 36%)

Etymology

Sinewy
adjective

Old English sinu, sinew — adjectival suffix -y. As a color modifier, sinewy implies a saturated-and-muscular-and-firm quality where the hue carries the lean-and-strong visual presence of a Roman-statue athletic figure. Sits at the bold-and-firm end of the grid, parallel to stalwart and rugged in usage.

Brooklyn
noun

The New York borough — and the deep blue of Brooklyn Bridge granite anchors-and-steel-cable assembly seen against East River water. Brooklyn refers to Brooklyn Bridge against late-evening city light: a saturated, slightly cool deep blue with the optical complexity of historic stone-and-cable bridge against urban-illuminated water.

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.

#283ea3
Original
#004ea6
Protanopia
#0043a1
Deuteranopia
#00586a
Tritanopia
#414141
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
9.10:1
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
2.31:1

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
##283EA3
Display P3
Display P3
color(display-p3 0.1756 0.2408 0.6158)
P3 has subtle headroomOKLCH chroma 0.165

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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