Recognised as Colour
#CB5643
- #CB5643
- Red
- Dark
- Nearest: Indian red
#CB5643 is a red with RGB values 203, 86, 67 and HSL 8°, 57%, 53%. It is a dark colour, so black text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Indian red.
Colour values
#CB5643#CB5643
HEX#CB5643
RGBrgb(203, 86, 67)
RGB (0–1)0.7961, 0.3373, 0.2627
RGB percentages79.6%, 33.7%, 26.3%
HSLhsl(8.4, 56.7%, 52.9%)
HSV / HSBhsv(8.4, 67%, 79.6%)
CMYK0%, 57.6%, 67%, 20.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer13,325,891
CSS custom property--colour: #CB5643;
Brightness & contrast
Relative luminance0.19757WCAG 2.x, 0 is black and 1 is white
Perceived brightness131.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.95:1
Contrast with white4.24:1WCAG normal text: Fail
Contrast with black4.95:1WCAG normal text: AA
Greyscale equivalent#6E6E6E
Inverted#34A9BC
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.24:1WCAG large text: AA
Contrast with black, large text4.95:1WCAG large text: AAA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#43B8CB
Analogous#CB4374, #CB9A43
Triadic#43CB56, #5643CB
Split complementary#43CB9A, #4374CB
Tetradic#74CB43, #43B8CB, #9A43CB
Tints, shades & saturation
Channel breakdown
R203
G86
B67
Red203 (79.6%)
Green86 (33.7%)
Blue67 (26.3%)
Hue8.38°
Saturation (HSL)56.67%
Lightness52.94%
Dominant channelRed
Hex per channelR CB · G 56 · B 43
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Also reads as
CB5643 (chemical formula)
- Formula
- 61,012.841 g/mol
- 5644 atoms
CB5643 has a molar mass of 61,012.841 g/mol, made up of 5644 atoms across 2 elements: 1 × C, 5643 × B.
Molar mass
Molar mass61,012.841 g/mol
Total atoms per molecule5644
Distinct elements2
Mass of one molecule1.0131421 × 10^-19 g
Molecules per gram9.8702841 × 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
C0%
B100%
Carbon (C)12.011 g/mol, 0.02%
Boron (B × 5643)61,000.83 g/mol, 99.98%
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