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Symmetrical Malt Verdigris

#31b9ba
Notes

Symmetrical Malt Verdigris (#31B9BA) is a true cyan with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (180°, 58%, 46%) 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
#31b9ba
RGB
rgb(49, 185, 186)
HSL
hsl(180, 58%, 46%)
HWB
hwb(180 19% 27%)
OKLCH
oklch(71.7% 0.111 195.7)
P3
color(display-p3 0.3678 0.7153 0.7239)
HSV
hsv(180, 74%, 73%)
LAB
lab(68.67% -34.37 -10.85)
LCH
lch(68.67% 36.04 197.51)
CMYK
cmyk(74%, 1%, 0%, 27%)

Etymology

Symmetrical
adjective

Greek symmetría, due-proportion — adjectival suffix -al, derived from sym-metron (with-measure). As a color modifier, symmetrical implies a clear-and-balanced-and-mirrored quality where the hue carries the visual register of bilateral-or-radial proportional symmetry. Sits at the crisp-and-balanced end of the grid, parallel to balanced and aligned in usage.

Malt
modifier

Old English mealt, germinated-grain. As a color modifier, malt implies a kilned-grain-and-amber-stout quality, the visual register of Burton-on-Trent-and-Bavarian-malt hand-kilned-grain-and-amber-stout Burton-on-Trent-and-Bavarian-malt-and-Munich-and-Pilsen malt-and-kilned-grain surfaces under Burton-on-Trent-and-Bavarian-malt-and-Munich-and-Pilsen Burton-and-Munich-and-Pilsen brewery-and-kiln-light. Sits at the modifier-and-flavor end of the grid, parallel to syrup and zest in usage.

Verdigris
noun

The basic copper carbonate that forms on weathered copper and bronze — the pigment scraped from oxidized metal and used in Renaissance painting before being supplanted by more stable greens. The color refers to a thick verdigris on aged copper roofing or the Statue of Liberty's surface: a soft, slightly muted blue-green with the powdery finish of mineral oxide. Cooler than patina, warmer than seafoam, with the archaeological weight of a mineral made by time.

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.

#31b9ba
Original
#acb0ba
Protanopia
#99a1bb
Deuteranopia
#00bfb9
Tritanopia
#9c9c9c
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).
Failon White
2.39:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon Black
8.78:1

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
##31B9BA
Display P3
Display P3
color(display-p3 0.3678 0.7153 0.7239)
P3 has subtle headroomOKLCH chroma 0.111

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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