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Symmetrical Kilt Verdigris

#30b7b5
Notes

Symmetrical Kilt Verdigris (#30B7B5) 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 (179°, 58%, 45%) 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
#30b7b5
RGB
rgb(48, 183, 181)
HSL
hsl(179, 58%, 45%)
HWB
hwb(179 19% 28%)
OKLCH
oklch(71.0% 0.111 193.4)
HSV
hsv(179, 74%, 72%)
LAB
lab(67.89% -35.01 -9.26)
LCH
lch(67.89% 36.22 194.81)
CMYK
cmyk(74%, 0%, 1%, 28%)

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.

Kilt
modifier

Scots kilt, Highland-pleated-skirt. As a color modifier, kilt implies a Highland-tartan-and-pleated-skirt quality, the visual register of Highland-tartan-and-Black-Watch-kilt hand-Highland-tartan-and-pleated-skirt Highland-tartan-and-Black-Watch-kilt-and-clan-Macleod kilt-and-Highland-tartan surfaces under Highland-tartan-and-Black-Watch-kilt-and-clan-Macleod Highland-clan-and-Edinburgh-tartan-mill tartan-and-pleated-light. Sits at the modifier-and-textile end of the grid, parallel to sash and tabard 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

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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.

#30b7b5
Original
#abaeb5
Protanopia
#989fb6
Deuteranopia
#00bdb6
Tritanopia
#9a9a9a
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
2.45:1
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
8.57:1

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