Recognised as Colour
#CE5511
- #CE5511
- Orange
- Dark
- Nearest: Chocolate
#CE5511 is a orange with RGB values 206, 85, 17 and HSL 22°, 85%, 44%. It is a dark colour, so black text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Chocolate.
Colour values
#CE5511#CE5511
HEX#CE5511
RGBrgb(206, 85, 17)
RGB (0–1)0.8078, 0.3333, 0.0667
RGB percentages80.8%, 33.3%, 6.7%
HSLhsl(21.6, 84.8%, 43.7%)
HSV / HSBhsv(21.6, 91.7%, 80.8%)
CMYK0%, 58.7%, 91.7%, 19.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer13,522,193
CSS custom property--colour: #CE5511;
Brightness & contrast
Relative luminance0.19659WCAG 2.x, 0 is black and 1 is white
Perceived brightness130.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.93:1
Contrast with white4.26:1WCAG normal text: Fail
Contrast with black4.93:1WCAG normal text: AA
Greyscale equivalent#6A6A6A
Inverted#31AAEE
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.26:1WCAG large text: AA
Contrast with black, large text4.93:1WCAG large text: AAA
Named colours
Hue familyorange
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#118ACE
Analogous#CE112C, #CEB311
Triadic#11CE55, #5511CE
Split complementary#11CEB3, #112CCE
Tetradic#2CCE11, #118ACE, #B311CE
Tints, shades & saturation
Channel breakdown
R206
G85
B17
Red206 (80.8%)
Green85 (33.3%)
Blue17 (6.7%)
Hue21.59°
Saturation (HSL)84.75%
Lightness43.73%
Dominant channelRed
Hex per channelR CE · G 55 · B 11
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Also reads as
Ce5511 (chemical formula)
- Formula
- 772,201.32 g/mol
- 5511 atoms
Ce5511 has a molar mass of 772,201.32 g/mol, made up of 5511 atoms across 1 element: 5511 × Ce.
Molar mass
Molar mass772,201.32 g/mol
Total atoms per molecule5511
Distinct elements1
Mass of one molecule1.2822705 × 10^-18 g
Molecules per gram7.7986668 × 10^17
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
Ce100%
Cerium (Ce × 5511)772,201.32 g/mol, 100%
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