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Quiet Muse Turquoise

#40a4c1
Notes

Quiet Muse Turquoise (#40A4C1) is a true cyan with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (193°, 51%, 50%) 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
#40a4c1
RGB
rgb(64, 164, 193)
HSL
hsl(193, 51%, 50%)
HWB
hwb(193 25% 24%)
OKLCH
oklch(67.2% 0.100 220.5)
P3
color(display-p3 0.3625 0.6347 0.7441)
HSV
hsv(193, 67%, 76%)
LAB
lab(62.92% -19.75 -23.41)
LCH
lch(62.92% 30.63 229.84)
CMYK
cmyk(67%, 15%, 0%, 24%)

Etymology

Quiet
adjective

Latin quietus, at rest — used as a color modifier since the medieval period for hues that read as restrained. Quiet pink, quiet blue: low saturation combined with optical calmness. Sits across the crisp and hushed buckets where the color is present but doesn't ask for attention.

Muse
modifier

Latin Musa, goddess-of-inspiration. As a color modifier, muse implies a contemplative-and-inspired-and-poetic quality, the visual register of Helicon-spring-and-Parnassus-muse hand-contemplative-and-inspired-and-poetic Helicon-spring-and-Parnassus-and-Castalian-fount mused-and-contemplative-and-inspired-and-poetic surfaces under Helicon-spring-and-Parnassus-and-Castalian-fount laurel-and-lyre-and-tablet poet's-grove-light. Sits at the modifier-and-mood end of the grid, parallel to mull and brood in usage.

Turquoise
noun

The hydrated copper-aluminum phosphate mined in Persia and the American Southwest for thousands of years — the firuze of Iran, the chalchihuitl of Mesoamerica, the heart of Pueblo and Navajo silverwork. The color refers to a fine Sleeping Beauty turquoise from Arizona: a saturated, slightly green-shifted blue with the slight matrix of host-rock veining. Brighter than persian, lighter than cerulean.

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.

#40a4c1
Original
#92a0c3
Protanopia
#8092c1
Deuteranopia
#00adad
Tritanopia
#919191
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
2.88:1
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
7.30:1

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
##40A4C1
Display P3
Display P3
color(display-p3 0.3625 0.6347 0.7441)
P3 has subtle headroomOKLCH chroma 0.100

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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