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Plumb Parsec Kingfisher

#288378
Notes

Plumb Parsec Kingfisher (#288378) 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 (173°, 53%, 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 red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#288378
RGB
rgb(40, 131, 120)
HSL
hsl(173, 53%, 34%)
HWB
hwb(173 16% 49%)
OKLCH
oklch(55.4% 0.086 183.6)
P3
color(display-p3 0.2665 0.5065 0.4706)
HSV
hsv(173, 69%, 51%)
LAB
lab(49.54% -29.06 -1.80)
LCH
lch(49.54% 29.11 183.55)
CMYK
cmyk(69%, 0%, 8%, 49%)

Etymology

Plumb
adjective

Latin plumbum, lead — referring to the lead-weighted plumb-line of pre-modern carpentry. As a color modifier, plumb implies a clear-and-vertical-true quality where the hue carries the visual register of gravity-aligned-and-perfectly-vertical surface. Sits at the crisp-and-balanced end of the grid, parallel to level and squared in usage.

Parsec
modifier

Coined 1913, parallax-second. As a color modifier, parsec implies a deep-space-and-stellar-distance quality, the visual register of 3.26-light-year-parsec hand-deep-space-and-stellar-distance 3.26-light-year-and-Hipparcos-and-Gaia-parsec parsec-and-deep-space-and-stellar-distance surfaces under 3.26-light-year-and-Hipparcos-and-Gaia-parsec galactic-cartography-and-stellar-cradle stellar-distance-light. Sits at the modifier-and-cosmic end of the grid, parallel to orbit and nebula in usage.

Kingfisher
noun

The family Alcedinidae — particularly Alcedo atthis, the European common kingfisher whose iridescent turquoise-blue plumage gives the color its name. The color refers to a male European kingfisher's wing: a saturated, slightly cool deep blue-green with the iridescent satin finish of structurally colored feathers.

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.

#288378
Original
#7d7b78
Protanopia
#6f7279
Deuteranopia
#008680
Tritanopia
#6f6f6f
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
4.56:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
4.61:1

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
##288378
Display P3
Display P3
color(display-p3 0.2665 0.5065 0.4706)
P3 has subtle headroomOKLCH chroma 0.086

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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