Recognised as Colour
#C56757
- #C56757
- Red
- Dark
- Nearest: Indian red
#C56757 is a red with RGB values 197, 103, 87 and HSL 9°, 49%, 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
#C56757#C56757
HEX#C56757
RGBrgb(197, 103, 87)
RGB (0–1)0.7725, 0.4039, 0.3412
RGB percentages77.3%, 40.4%, 34.1%
HSLhsl(8.7, 48.7%, 55.7%)
HSV / HSBhsv(8.7, 55.8%, 77.3%)
CMYK0%, 47.7%, 55.8%, 22.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,937,047
CSS custom property--colour: #C56757;
Brightness & contrast
Relative luminance0.22259WCAG 2.x, 0 is black and 1 is white
Perceived brightness136.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.45:1
Contrast with white3.85:1WCAG normal text: Fail
Contrast with black5.45:1WCAG normal text: AA
Greyscale equivalent#7A7A7A
Inverted#3A98A8
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.85:1WCAG large text: AA
Contrast with black, large text5.45:1WCAG large text: AAA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#57B5C5
Analogous#C5577E, #C59E57
Triadic#57C567, #6757C5
Split complementary#57C59E, #577EC5
Tetradic#7EC557, #57B5C5, #9E57C5
Tints, shades & saturation
Channel breakdown
R197
G103
B87
Red197 (77.3%)
Green103 (40.4%)
Blue87 (34.1%)
Hue8.73°
Saturation (HSL)48.67%
Lightness55.69%
Dominant channelRed
Hex per channelR C5 · G 67 · B 57
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Harmonies
Similar named colours
Also reads as
C56757 (chemical formula)
- Formula
- 681,708.327 g/mol
- 56757 atoms
C56757 has a molar mass of 681,708.327 g/mol, made up of 56757 atoms across 1 element: 56757 × C.
Molar mass
Molar mass681,708.327 g/mol
Total atoms per molecule56757
Distinct elements1
Mass of one molecule1.1320033 × 10^-18 g
Molecules per gram8.8338964 × 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
C100%
Carbon (C × 56757)681,708.327 g/mol, 100%
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