Recognised as Colour
#CA6655
- #CA6655
- Red
- Dark
- Nearest: Indian red
#CA6655 is a red with RGB values 202, 102, 85 and HSL 9°, 52%, 56%. It is a dark colour, so black text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Indian red.
Colour values
#CA6655#CA6655
HEX#CA6655
RGBrgb(202, 102, 85)
RGB (0–1)0.7922, 0.4, 0.3333
RGB percentages79.2%, 40%, 33.3%
HSLhsl(8.7, 52.5%, 56.3%)
HSV / HSBhsv(8.7, 57.9%, 79.2%)
CMYK0%, 49.5%, 57.9%, 20.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer13,264,469
CSS custom property--colour: #CA6655;
Brightness & contrast
Relative luminance0.22715WCAG 2.x, 0 is black and 1 is white
Perceived brightness138.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.54:1
Contrast with white3.79:1WCAG normal text: Fail
Contrast with black5.54:1WCAG normal text: AA
Greyscale equivalent#7A7A7A
Inverted#3599AA
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.79:1WCAG large text: AA
Contrast with black, large text5.54:1WCAG large text: AAA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#55B9CA
Analogous#CA557E, #CAA155
Triadic#55CA66, #6655CA
Split complementary#55CAA1, #557ECA
Tetradic#7ECA55, #55B9CA, #A155CA
Tints, shades & saturation
Channel breakdown
R202
G102
B85
Red202 (79.2%)
Green102 (40%)
Blue85 (33.3%)
Hue8.72°
Saturation (HSL)52.47%
Lightness56.27%
Dominant channelRed
Hex per channelR CA · G 66 · B 55
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Harmonies
Similar named colours
Also reads as
Ca6655 (chemical formula)
- Formula
- 266,719.09 g/mol
- 6655 atoms
Ca6655 has a molar mass of 266,719.09 g/mol, made up of 6655 atoms across 1 element: 6655 × Ca.
Molar mass
Molar mass266,719.09 g/mol
Total atoms per molecule6655
Distinct elements1
Mass of one molecule4.4289747 × 10^-19 g
Molecules per gram2.2578589 × 10^18
Name
NameNot in the name tablea name cannot be worked out from a formula alone: isomers share formulas, and naming depends on bonding the formula does not show
Composition by mass
Ca100%
Calcium (Ca × 6655)266,719.09 g/mol, 100%
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Elements in this formula
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