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Welcoming Spa

#255e4b
Notes

Welcoming Spa (#255E4B) is a deep teal 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 (160°, 44%, 26%) 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 red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#255e4b
RGB
rgb(37, 94, 75)
HSL
hsl(160, 44%, 26%)
HWB
hwb(160 15% 63%)
OKLCH
oklch(43.8% 0.068 168.4)
P3
color(display-p3 0.2063 0.3637 0.2985)
HSV
hsv(160, 61%, 37%)
LAB
lab(35.80% -23.82 5.35)
LCH
lch(35.80% 24.41 167.33)
CMYK
cmyk(61%, 0%, 20%, 63%)

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.

Spa
noun

A mineral-spring resort — named for the Belgian town of Spa whose iron-rich springs have drawn visitors since the sixteenth century. Spa color refers to a thermal spring pool at Saturnia in Tuscany: a saturated, slightly cool deep blue-green with the optical complexity of mineral-saturated 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.

#255e4b
Original
#5c584a
Protanopia
#53524c
Deuteranopia
#075e59
Tritanopia
#515151
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
7.55:1
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
2.78:1

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
##255E4B
Display P3
Display P3
color(display-p3 0.2063 0.3637 0.2985)
Inside sRGBOKLCH chroma 0.068

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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