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Lucid Crete

#40a3bc
Notes

Lucid Crete (#40A3BC) 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 (192°, 49%, 49%) 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
#40a3bc
RGB
rgb(64, 163, 188)
HSL
hsl(192, 49%, 49%)
HWB
hwb(192 25% 26%)
OKLCH
oklch(66.8% 0.098 217.6)
P3
color(display-p3 0.3611 0.6309 0.7256)
HSV
hsv(192, 66%, 74%)
LAB
lab(62.43% -20.80 -21.35)
LCH
lch(62.43% 29.81 225.75)
CMYK
cmyk(66%, 13%, 0%, 26%)

Etymology

Lucid
adjective

Latin lūcidus, clear / bright — derived from lūx (light). As a color modifier, lucid implies a clear-and-readable quality where the hue is unambiguous and free of optical clutter. Sits at the crisp-and-clear end of the grid, parallel to pellucid and plain in usage.

Crete
noun

The largest Greek island — and the saturated deep blue of Cretan beach water at Elafonissi and Balos Lagoon. Crete color refers to the lagoon at Balos: a saturated, slightly cool deep blue-green with the optical clarity of warm Aegean water filtered through pink-coral sand.

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.

#40a3bc
Original
#939ebd
Protanopia
#8191bc
Deuteranopia
#00acab
Tritanopia
#909090
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
2.92:1
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
7.18:1

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
##40A3BC
Display P3
Display P3
color(display-p3 0.3611 0.6309 0.7256)
P3 has subtle headroomOKLCH chroma 0.098

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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