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Ancient Yosemite

#434d66
Notes

Ancient Yosemite (#434D66) is a deep azure 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 (223°, 21%, 33%) places it in the muted band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. For a confident two-color system, pair it with its complementary amber. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#434d66
RGB
rgb(67, 77, 102)
HSL
hsl(223, 21%, 33%)
HWB
hwb(223 26% 60%)
OKLCH
oklch(42.2% 0.044 267.6)
P3
color(display-p3 0.2702 0.3008 0.3920)
HSV
hsv(223, 34%, 40%)
LAB
lab(32.83% 2.69 -15.83)
LCH
lch(32.83% 16.06 279.65)
CMYK
cmyk(34%, 25%, 0%, 60%)

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.

Yosemite
noun

The California national park in the Sierra Nevada — and the saturated deep blue of Half Dome's eastern shadow at sunset and the Yosemite Valley sky framed by El Capitan. Yosemite refers to the Yosemite Valley sky at sunset: a saturated, slightly cool deep blue with the optical depth of high-altitude desert sky.

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.

#434d66
Original
#454f67
Protanopia
#424c65
Deuteranopia
#395256
Tritanopia
#4d4d4d
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).
AAAon White
8.43:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
2.49:1

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
##434D66
Display P3
Display P3
color(display-p3 0.2702 0.3008 0.3920)
Inside sRGBOKLCH chroma 0.044

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.

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