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Untroubled Chambray

#40e1dd
Notes

Untroubled Chambray (#40E1DD) is a true cyan with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (179°, 73%, 57%) 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
#40e1dd
RGB
rgb(64, 225, 221)
HSL
hsl(179, 73%, 57%)
HWB
hwb(179 25% 12%)
OKLCH
oklch(82.9% 0.129 192.5)
HSV
hsv(179, 72%, 88%)
LAB
lab(81.92% -40.99 -9.96)
LCH
lch(81.92% 42.18 193.66)
CMYK
cmyk(72%, 0%, 2%, 12%)

Etymology

Untroubled
adjective

Latin turbāre, to disturb — negative-prefix un- plus past-participle of trouble. As a color modifier, untroubled implies a clear-and-calm-and-undisturbed quality where the hue carries no visual agitation. Sits at the crisp-and-calm end of the grid, parallel to serene and placid in usage.

Chambray
noun

A lightweight cotton fabric woven with a colored warp and white weft — producing a soft chambray-blue characteristic of summer workwear and cambric dressmaking. The color refers to a freshly woven chambray shirt before any wash: a soft, slightly muted deep blue with the satin finish of fine cotton-and-indigo weave.

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.

#40e1dd
Original
#d3d6dd
Protanopia
#bcc4de
Deuteranopia
#00e8df
Tritanopia
#bebebe
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
1.61:1
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
13.03:1

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