colors
Back to gallery

Ancient Nocturne

#65647f
Notes

Ancient Nocturne (#65647F) is a true blue 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 (242°, 12%, 45%) places it in the muted 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 yellow. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#65647f
RGB
rgb(101, 100, 127)
HSL
hsl(242, 12%, 45%)
HWB
hwb(242 39% 50%)
OKLCH
oklch(51.4% 0.042 286.5)
P3
color(display-p3 0.3954 0.3923 0.4898)
HSV
hsv(242, 21%, 50%)
LAB
lab(43.38% 6.56 -14.87)
LCH
lch(43.38% 16.25 293.79)
CMYK
cmyk(20%, 21%, 0%, 50%)

Etymology

Ancient
adjective

Latin anteānus, of-the-old-time — sharing root with ante (before). As a color modifier, ancient implies a hushed-and-deep-historical quality where the hue carries the visual register of Pompeii-and-Roman archeological-period faded-and-mineral-pigment color. Sits at the hushed-and-aged end of the grid, parallel to olden and antique in usage.

Nocturne
noun

French nocturne, night-piece — adopted into music by John Field (Irish, 1812) and Frédéric Chopin (Polish, 1827–46) for piano character pieces evoking nighttime, and into painting by James McNeill Whistler for a series of deep-blue-violet Thames-river twilights. Nocturne color refers to a Whistler Nocturne in Black and Gold foreground tonality: a saturated, slightly cool deep blue-violet with the soft finish of thinned oil over warm gesso.

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.

#65647f
Original
#5d6780
Protanopia
#5d667e
Deuteranopia
#5f686d
Tritanopia
#666666
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).
AAon White
5.70:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
3.68:1

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
##65647F
Display P3
Display P3
color(display-p3 0.3954 0.3923 0.4898)
Inside sRGBOKLCH chroma 0.042

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

Related Colors

Canvas