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Sure Drear Verdigris

#4cbdb3
Notes

Sure Drear Verdigris (#4CBDB3) 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 (175°, 46%, 52%) 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
#4cbdb3
RGB
rgb(76, 189, 179)
HSL
hsl(175, 46%, 52%)
HWB
hwb(175 30% 26%)
OKLCH
oklch(73.1% 0.103 187.1)
P3
color(display-p3 0.4233 0.7316 0.7004)
HSV
hsv(175, 60%, 74%)
LAB
lab(70.30% -34.19 -4.51)
LCH
lch(70.30% 34.49 187.51)
CMYK
cmyk(60%, 0%, 5%, 26%)

Etymology

Sure
adjective

Old French seur, certain — used as a color modifier since the medieval period for hues that read as confident and stable. Sure red, sure blue: moderate saturation combined with optical commitment. Sits at the crisp-bucket center alongside steady and true.

Drear
modifier

Old English drēor, gore-and-sorrow. As a color modifier, drear implies a bleak-and-cheerless-and-sorrowful quality, the visual register of Brontë-moorland-and-Hardy-heath-drear hand-bleak-and-cheerless-and-sorrowful Brontë-moorland-and-Hardy-heath-and-Wuthering drear-and-bleak-and-cheerless-and-sorrowful surfaces under Brontë-moorland-and-Hardy-heath-and-Wuthering rain-swept-and-low-cloud-and-empty-vista Yorkshire-and-Wessex-light. Sits at the modifier-and-mood end of the grid, parallel to bleak and gloom 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.

#4cbdb3
Original
#b4b3b3
Protanopia
#a2a6b4
Deuteranopia
#00c1ba
Tritanopia
#a4a4a4
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
2.27:1
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
9.24:1

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
##4CBDB3
Display P3
Display P3
color(display-p3 0.4233 0.7316 0.7004)
P3 has subtle headroomOKLCH chroma 0.103

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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