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  2. Shades of orange - Wikipedia

    en.wikipedia.org/wiki/Shades_of_orange

    Orange (color wheel) Color coordinates; Hex triplet: #FF8000: sRGB B (r, g, b) (255, 128, 0) HSV (h, s, v) (30°, 100%, 100%) CIELCh uv (L, C, h) (67, 123, 30°) Source: HTML Color Chart @30: ISCC–NBS descriptor: Vivid reddish orange: B: Normalized to [0–255] (byte)

  3. Shades of red - Wikipedia

    en.wikipedia.org/wiki/Shades_of_red

    Vivid reddish orange. B: Normalized to [0–255] (byte) Red (RGB), RGB red, or electric red[citation needed] (as opposed to pigment red, shown below) is the brightest possible red that can be reproduced on a computer monitor. This color is an approximation of an orangish red spectral color.

  4. List of colors by shade - Wikipedia

    en.wikipedia.org/wiki/List_of_colors_by_shade

    Orange is the color in the visible spectrum between red and yellow with a wavelength around 585 – 620 nm. In the HSV color space, it has a hue of around 30°.

  5. Vermilion - Wikipedia

    en.wikipedia.org/wiki/Vermilion

    Orange-Red Color coordinates; Hex triplet: #FF4500: sRGB B (r, g, b) (255, 69, 0) HSV (h, s, v) (16°, 100%, 100%) CIELCh uv (L, C, h) (58, 158, 17°) Source: X11: ISCC–NBS descriptor: Vivid reddish orange: B: Normalized to [0–255] (byte)

  6. ROYGBIV - Wikipedia

    en.wikipedia.org/wiki/ROYGBIV

    ROYGBIV is an acronym for the sequence of hues commonly described as making up a rainbow: red, orange, yellow, green, blue, indigo, and violet. There are several mnemonics that can be used for remembering this color sequence, such as the name "Roy G. Biv" or sentences such as " Richard of York Gave Battle in Vain".

  7. Homeland Security Advisory System - Wikipedia

    en.wikipedia.org/wiki/Homeland_Security_Advisory...

    Homeland Security Advisory System color chart. In the United States, the Homeland Security Advisory System (HSAS) was a color-coded terrorism threat advisory scale created in March 2002 under the Bush administration in response to the September 11 attacks. The different levels triggered specific actions by federal agencies and state and local ...

  8. List of electronic color code mnemonics - Wikipedia

    en.wikipedia.org/wiki/List_of_electronic_color...

    The first letter of the color code is matched by order of increasing magnitude. The electronic color codes, in order, are: 0 = Black; 1 = Brown; 2 = Red; 3 = Orange; 4 = Yellow; 5 = Green; 6 = Blue; 7 = Violet; 8 = Gray; 9 = White; Easy to remember. A mnemonic which includes color name(s) generally reduces the chances of confusing black and brown.

  9. Orange (colour) - Wikipedia

    en.wikipedia.org/wiki/Orange_(colour)

    In traditional colour theory, orange is a range of colours between red and yellow. In optics, orange is the colour seen by the eye when looking at light with a wavelength between approximately 585–620 nm. It has a hue of 30° in HSV colour space.

  10. List of RAL colours - Wikipedia

    en.wikipedia.org/wiki/List_of_RAL_colours

    RAL orange: RAL 3000: Flame red: #AB2524: 65.86: 164: 40: 33: 3.21° 66.5: 38.63: 37.687: 50.439: 36.563: 0: 76: 80: 36: 10 RAL 3001: Signal red: #A02128: 59.87: 152: 35: 35: 0° 62.57: 36.67: 34.702: 48.478: 31.204: 0: 77: 77: 40: 8 RAL 3002: Carmine red: #A1232B: 59.09: 152: 34: 34: 0° 63.44: 36.47: 34.458: 48.832: 31.869: 0: 78: 78: 40: 8 ...

  11. Color of chemicals - Wikipedia

    en.wikipedia.org/wiki/Color_of_chemicals

    Colors of alkali metal and alkaline earth metal ions in flame; Name Formula Color Lithium: Li Red Sodium: Na Yellow/orange Magnesium: Mg Brilliant white Potassium: K Lilac/violet Calcium: Ca Brick red Rubidium: Rb Red-violet Strontium: Sr Red Caesium: Cs Light blue Barium: Ba Green/yellow Copper: Cu Blue/Green(Often with white flashes) Lead: Pb ...