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Shaded Aizome

#273d88
Notes

Shaded Aizome (#273D88) is a deep blue with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (226°, 55%, 34%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. 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
#273d88
RGB
rgb(39, 61, 136)
HSL
hsl(226, 55%, 34%)
HWB
hwb(226 15% 47%)
OKLCH
oklch(38.8% 0.128 267.7)
P3
color(display-p3 0.1717 0.2369 0.5147)
HSV
hsv(226, 71%, 53%)
LAB
lab(28.24% 18.39 -44.53)
LCH
lch(28.24% 48.18 292.44)
CMYK
cmyk(71%, 55%, 0%, 47%)

Etymology

Shaded
adjective

Old English sceadwian, to cover with shadow — past-participle of shade. As a color modifier, shaded implies a hue darkened by overhead-foliage-or-architectural-element occlusion in pre-modern garden-and-courtyard tradition. Sits at the deep-and-obscured end of the grid, parallel to shadowy but more architectural in connotation.

Aizome
noun

The Japanese traditional indigo-dyeing technique — aizome — using Persicaria tinctoria (Japanese indigo) and natural fermentation in clay vats. The dyer is called aishi (indigo master), trained over decades. The color refers to a freshly aizome-dyed cotton: a saturated, slightly cool deep blue with the matte finish of multi-bath natural-indigo dye.

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.

#273d88
Original
#06478b
Protanopia
#003e86
Deuteranopia
#004f5c
Tritanopia
#3e3e3e
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
9.96:1
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
2.11:1

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
##273D88
Display P3
Display P3
color(display-p3 0.1717 0.2369 0.5147)
P3 has subtle headroomOKLCH chroma 0.128

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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