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Welcoming Konpeki

#366c8e
Notes

Welcoming Konpeki (#366C8E) is a true azure 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 (203°, 45%, 38%) 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 orange. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#366c8e
RGB
rgb(54, 108, 142)
HSL
hsl(203, 45%, 38%)
HWB
hwb(203 21% 44%)
OKLCH
oklch(50.9% 0.079 238.6)
P3
color(display-p3 0.2647 0.4185 0.5447)
HSV
hsv(203, 62%, 56%)
LAB
lab(43.45% -7.07 -24.02)
LCH
lch(43.45% 25.04 253.60)
CMYK
cmyk(62%, 24%, 0%, 44%)

Etymology

Welcoming
adjective

Old English wel-cuman, well-coming — present-participle of welcome. As a color modifier, welcoming implies a clear-and-inviting-and-warm quality where the hue carries the visual register of cordial-and-hospitable color-tone. Sits at the crisp-and-cheerful end of the grid, parallel to hospitable and inviting in usage.

Konpeki
noun

Japanese konpeki (紺碧) — the saturated deep azure of clear ocean and sky. The compound combines kon (deep blue) and heki (jade-blue), naming a color deeper than aozora and brighter than ruri. The color refers to konpeki-painted Edo-period folding screens: a saturated, slightly cool deep blue with the matte finish of pigment in tempera.

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.

#366c8e
Original
#5c6c90
Protanopia
#50638d
Deuteranopia
#007577
Tritanopia
#636363
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
5.69:1
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
3.69:1

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
##366C8E
Display P3
Display P3
color(display-p3 0.2647 0.4185 0.5447)
Inside sRGBOKLCH chroma 0.079

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

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