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Reposeful Seaholly

#478f7b
Notes

Reposeful Seaholly (#478F7B) is a true 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 (163°, 34%, 42%) 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 red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#478f7b
RGB
rgb(71, 143, 123)
HSL
hsl(163, 34%, 42%)
HWB
hwb(163 28% 44%)
OKLCH
oklch(59.7% 0.079 173.1)
P3
color(display-p3 0.3502 0.5542 0.4860)
HSV
hsv(163, 50%, 56%)
LAB
lab(54.46% -27.67 3.74)
LCH
lch(54.46% 27.92 172.30)
CMYK
cmyk(50%, 0%, 14%, 44%)

Etymology

Reposeful
adjective

Latin repōnere, to put back — adjectival suffix -ful. As a color modifier, reposeful implies a clear-and-restful-and-still quality, the calm color of pre-modern monastic cloister-and-refectory meditative-and-silent interior architecture. Sits at the crisp-and-calm end of the grid, parallel to peaceful and placid in usage.

Seaholly
noun

Eryngium maritimum, the European sea holly — a coastal-dune perennial with silver-blue spiny foliage and metallic-blue flower heads, persistent enough to weather Atlantic storms on exposed dune ridges. The color refers to fresh E. maritimum foliage: a soft, slightly cool silver-blue-green with the matte finish of waxy-cuticled coastal succulent.

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.

#478f7b
Original
#8b877a
Protanopia
#807f7c
Deuteranopia
#299089
Tritanopia
#7e7e7e
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).
AA Largeon White
3.83:1
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
5.48:1

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
##478F7B
Display P3
Display P3
color(display-p3 0.3502 0.5542 0.4860)
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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