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Tidy Nutmeg Turquoise

#40b2bf
Notes

Tidy Nutmeg Turquoise (#40B2BF) 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 (186°, 50%, 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
#40b2bf
RGB
rgb(64, 178, 191)
HSL
hsl(186, 50%, 50%)
HWB
hwb(186 25% 25%)
OKLCH
oklch(70.5% 0.102 205.9)
P3
color(display-p3 0.3829 0.6887 0.7403)
HSV
hsv(186, 66%, 75%)
LAB
lab(67.04% -27.51 -16.02)
LCH
lch(67.04% 31.83 210.22)
CMYK
cmyk(66%, 7%, 0%, 25%)

Etymology

Tidy
adjective

Old English tidig, timely — drifted in modern English to mean neat, orderly. Used as a color modifier for hues that read as composed and unfussy. Tidy beige, tidy gray: moderate saturation combined with optical neatness. Sits at the crisp-bucket alongside plain and modest.

Nutmeg
modifier

Latin nux-muscata, musk-nut. As a color modifier, nutmeg implies a warm-and-grated-and-Banda-Islands-musk-nut quality, the visual register of Banda-Islands-and-Spice-Islands-nutmeg hand-warm-and-grated-and-Banda-Islands-musk-nut Banda-Islands-and-Spice-Islands-nutmeg-and-Maluku nutmeg-and-warm-and-grated surfaces under Banda-Islands-and-Spice-Islands-nutmeg-and-Maluku Banda-Islands-and-Run-and-Maluku Spice-Islands-musk-light. Sits at the modifier-and-flavor end of the grid, parallel to clove and mace 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.

#40b2bf
Original
#a4abc0
Protanopia
#919dbf
Deuteranopia
#00b9b6
Tritanopia
#9b9b9b
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
2.52:1
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
8.34:1

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
##40B2BF
Display P3
Display P3
color(display-p3 0.3829 0.6887 0.7403)
P3 has subtle headroomOKLCH chroma 0.102

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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