Fashion in the 1970s was nothing if not bold, unrestrained and experimental — the mood ring, a trend that originated late in the decade, quite literally crystallizes all of these qualities. While you’ll find a little variance among mood ring color charts according to the jeweler, the basic color meanings are not only consistent, they also largely align with common color-coded symbols. Warm colors indicate heated emotions and cool hues imply levelheadedness, for instance. However, you’ll find plenty subtle shades between the basic tones.

Basic Black

Black serves as the mood ring’s 640 color, indicating a resting state. The darkest of shades may also represent stress, fear or angst. Consider the situation at hand as you interpret this color; a neutral black occurs during mellower moments, while stronger emotions typically pop up in intense colors.

Getting Warmer

As your body temperature rises, the mood ring’s stone starts to veer into warm-hued territory. Yellow and orange typically indicate nervousness or an anxious emotional state, while the latter may also broadcast erratic emotions such as confusion or excitement. As is the case with all transitional shades, tones like yellow-orange signal mixed feelings.

Heated Hues

Red is commonly viewed as the color of passion, and this remains true in the world of mood rings; deep burgundy particularly speaks of a wearer in the grip of romance. Bold red shades also exhibit fury or mischievousness on the part of the wearer. As the ring’s stone transitions from red to blue — or vice versa — with a violet color, this represents euphoria or sensuality.

Feeling Blue

If you feel meditative, calm or at peace, your mood ring’s gem may turn a cool blue. Cool colors also indicate joy, happiness or a generally pleasant vibe. Mood ring manufacturers say that blue also conveys feelings of optimism.

Earthy Shades

While mood rings are known for their psychedelic shades, you’ll miss some emotional cues if you gloss over the neutral tones. Brown mood ring stones are associated with intellectual pursuits, such as rethinking or researching, though the color may also represent rising emotions. Brown appears in variations such as copper, chocolate or a gold-tinged tan.

An Icy Stone

Mood stones with a misty ivory coloration express even-keeled emotions that inlcude meditation, restraint and levelheadedness. A touch of gray comes with connotations of distant moods or inhibitions. Watch out for completely clear mood rings, though, because this icy composition may just mean that you have a faux stone.

More Moods

Mood rings read passionate, fiery love with deep reds, and lighter pinks naturally cue more even-tempered varieties of romantic emotions, like affection, warmth or infatuation. Alert or neutral wearers may have a green stone. Sometimes green is associated with mixed emotions, particularly lighter hues or blue-green tones.