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Welcoming Oolong

#1f6b6a
Notes

Welcoming Oolong (#1F6B6A) is a deep cyan 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 (179°, 55%, 27%) 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
#1f6b6a
RGB
rgb(31, 107, 106)
HSL
hsl(179, 55%, 27%)
HWB
hwb(179 12% 58%)
OKLCH
oklch(48.3% 0.072 193.8)
P3
color(display-p3 0.2132 0.4136 0.4129)
HSV
hsv(179, 71%, 42%)
LAB
lab(40.97% -22.64 -6.15)
LCH
lch(40.97% 23.46 195.19)
CMYK
cmyk(71%, 0%, 1%, 58%)

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.

Oolong
noun

The partially-oxidized Chinese tea — qīng-chá (cyan tea) — with the deep blue-green liquor distinct from green tea (lower oxidation) and black tea (higher oxidation). The color refers to fresh-brewed Tieguanyin oolong: a saturated, slightly cool deep blue-green with the optical depth of partially-fermented tea liquor.

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.

#1f6b6a
Original
#64656a
Protanopia
#585d6b
Deuteranopia
#006e6a
Tritanopia
#5b5b5b
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
6.23:1
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
3.37:1

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
##1F6B6A
Display P3
Display P3
color(display-p3 0.2132 0.4136 0.4129)
Inside sRGBOKLCH chroma 0.072

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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