September 10
Birthday Color: Tetsukon
#17184B · rgb(23, 24, 75) · hsl(239, 53%, 19%) · CMYK(69,68,0,71)
CMYK values are numeric conversions from RGB and may differ from print standards.
Zodiac: Virgo ♍
Color words & personality
Tetsukon is the birthday color for September 10. In this system it belongs to a family read as quiet about keeping promises. Its color words point to before dawn: the quiet of being already awake in the darkest hour. In print, this color shows a deep tone that absorbs rather than reflects light. Once you know this color, you will start noticing it in the street.
Try it: For a handkerchief or tie — items that stay near you daily.
As a gift: Blue lends calm to a thoughtful gift. → Pick a gift color by birthday color
Birth flower, star, fish & fruit of September 10
Birth star
Errai
Star words: shepherd, wayfinding
Cepheus · γ Cep · mag 3.21 — Circumpolar — up all night in the northern sky, highest around midnight
Birth flower
Thistle
Meaning: independence, contentment
Peak: Sep, Oct
Birth fish
Yellowfin goby
Fish words: autumn air, crispness
Peak: Sep, Oct
The September 10 flower is thistle. Spiny leaves and a dense purple head make it look untouchable, and it thrives where little else will. Hanakotoba gives it independence and contentment. Tetsukon (#17184B) is the birthday color, a near-black indigo whose color word is "before dawn." Peak bloom runs September through October. A stubborn flower in the last dark of night.
High on King Cepheus' shoulder burns Errai, Gamma Cephei, the third-magnitude orange star of September 10. Its name is Arabic for 'shepherd,' and it shepherds more than stars: a planet circles it, and in a few millennia Earth's axis will make it our North Star. Its star words are shepherd and wayfinding. At midnight it hangs due south, a watchman's lamp. The day's color is Tetsukon (#17184B), iron navy, its color words before dawn — the darkest blue, with a light already lit inside.
September 10's birth fish is the Yellowfin goby, a small fish that gathers in the brackish waters of river mouths and tidal flats. Fish words: “autumn air” and “crispness”. Its flesh, it is said, firms and deepens in flavor as autumn nears. Peak season: September and October. The birth color of the day is Tetsukon (#17184B), a deep navy like the hour before dawn. Weigh it against a quiet morning table.
If you were born on Sep 10, your birth fruit is the Passion fruit. A tropical fruit of the season, the Passion fruit arrives from Sep. The fruit words for this date read "devotion and aroma". Sep is its season. This day's birthday color: Tetsukon (#17184B). The color word here is "before dawn". A quiet, seasonal note for a birthday table.
Our birth flowers are an independently compiled system based on flowering seasons and hanakotoba. Birth stars are assigned by an astronomical rule — the IAU-named star culminating around midnight on that date. Birth fish and fruits are compiled independently by peak season (fish include seafood).
About this date's birth flower
- What is the birth flower for September 10?
- The birth flower for September 10 is the Thistle. Its hanakotoba include independence, contentment, and its peak season is Sep, Oct.
- What is the birth fish for September 10?
- The birth fish for September 10 is the Yellowfin goby. Its fish words include autumn air, crispness, and its peak season is Sep, Oct.
- What is the birth fruit for September 10?
- The birth fruit for September 10 is the Passion fruit. Its fruit words include devotion, aroma, and its peak season is Sep.
- What is the birthday color for September 10?
- The birthday color for September 10 is Tetsukon (#17184B). It pairs with the day's flower, Thistle.
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Color palette for Tetsukon
Monochrome (lightness steps)
#2D2E91
oklch(37.1% 0.158 275.0)
#17184B
oklch(24.5% 0.092 276.3)
base
#0A0A1F
oklch(15.9% 0.043 280.3)
Analogous (±30°)
#17324B
oklch(30.9% 0.056 248.4)
#17184B
oklch(24.5% 0.092 276.3)
base
#30174B
oklch(27.0% 0.093 302.7)
Complementary (+180°)
#17184B
oklch(24.5% 0.092 276.3)
#4B4A17
oklch(39.9% 0.071 108.1)
base
#ADAA35
oklch(71.9% 0.135 107.9)
For designers
Colors for use on surfaces. Text readability is not covered by this suggestion.
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Scores derive from hue distance — the same algorithm as the mix tool.