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Etched Sencha

#128f5b
Notes

Etched Sencha (#128F5B) is a deep teal with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (155°, 78%, 32%) places it in the highly saturated band at a dark lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. For a confident two-color system, pair it with its complementary magenta. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#128f5b
RGB
rgb(18, 143, 91)
HSL
hsl(155, 78%, 32%)
HWB
hwb(155 7% 44%)
OKLCH
oklch(57.5% 0.129 158.4)
P3
color(display-p3 0.2570 0.5524 0.3738)
HSV
hsv(155, 87%, 56%)
LAB
lab(52.43% -44.40 18.93)
LCH
lch(52.43% 48.27 156.91)
CMYK
cmyk(87%, 0%, 36%, 44%)

Etymology

Etched
adjective

German ätzen, to etch — past-participle of etch. As a color modifier, etched implies a clear-and-precisely-incised quality, the crisp color of Rembrandt-and-Dürer hand-pulled etching-print fine-line incised-image. Sits at the crisp-and-incised end of the grid, parallel to engraved and inscribed in usage.

Sencha
noun

The Japanese steamed-leaf green tea — the most-consumed Japanese tea, distinct from matcha (powdered) and gyokuro (shaded-grown). The color refers to fresh-brewed sencha in a porcelain cup: a saturated, slightly cool deep blue-green with the optical clarity of steamed-leaf green-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.

#128f5b
Original
#8e8358
Protanopia
#80795e
Deuteranopia
#008e82
Tritanopia
#717171
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
4.11:1
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
5.11:1

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
##128F5B
Display P3
Display P3
color(display-p3 0.2570 0.5524 0.3738)
P3 has subtle headroomOKLCH chroma 0.129

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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