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Venerable Hydrangea

#3a5a67
Notes

Venerable Hydrangea (#3A5A67) is a deep 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 (197°, 28%, 32%) 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 orange. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#3a5a67
RGB
rgb(58, 90, 103)
HSL
hsl(197, 28%, 32%)
HWB
hwb(197 23% 60%)
OKLCH
oklch(44.8% 0.043 225.5)
P3
color(display-p3 0.2551 0.3496 0.3982)
HSV
hsv(197, 44%, 40%)
LAB
lab(36.35% -7.91 -11.14)
LCH
lch(36.35% 13.67 234.63)
CMYK
cmyk(44%, 13%, 0%, 60%)

Etymology

Venerable
adjective

Latin venerābilis, worthy-of-respect — adjectival suffix -able. As a color modifier, venerable implies a hushed-and-aged-and-respected quality where the hue carries the visual register of long-lived-and-respected antique-and-historical period-correct color. Sits at the hushed-and-aged end of the grid, parallel to aged and ancient in usage.

Hydrangea
noun

The genus Hydrangea — particularly H. macrophylla, whose flower color depends on soil pH (acidic = blue, alkaline = pink). The color refers to a blue-bloom H. macrophylla in acidic-soil garden: a saturated, slightly cool deep blue-violet with the matte finish of clustered four-petaled florets.

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.

#3a5a67
Original
#535868
Protanopia
#4c5367
Deuteranopia
#285e5e
Tritanopia
#545454
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
7.40:1
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
2.84:1

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
##3A5A67
Display P3
Display P3
color(display-p3 0.2551 0.3496 0.3982)
Inside sRGBOKLCH chroma 0.043

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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