Recognised as Colour
#CB256C
- #CB256C
- Red
- Dark
- Nearest: Medium violet red
#CB256C is a red with RGB values 203, 37, 108 and HSL 334°, 69%, 47%. It is a dark colour, so white text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Medium violet red.
Colour values
#CB256C#CB256C
HEX#CB256C
RGBrgb(203, 37, 108)
RGB (0–1)0.7961, 0.1451, 0.4235
RGB percentages79.6%, 14.5%, 42.4%
HSLhsl(334.3, 69.2%, 47.1%)
HSV / HSBhsv(334.3, 81.8%, 79.6%)
CMYK0%, 81.8%, 46.8%, 20.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer13,313,388
CSS custom property--colour: #CB256C;
Brightness & contrast
Relative luminance0.15102WCAG 2.x, 0 is black and 1 is white
Perceived brightness120.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.22:1
Contrast with white5.22:1WCAG normal text: AA
Contrast with black4.02:1WCAG normal text: Fail
Greyscale equivalent#4D4D4D
Inverted#34DA93
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.22:1WCAG large text: AAA
Contrast with black, large text4.02:1WCAG large text: AA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#25CB84
Analogous#CB25BF, #CB3125
Triadic#6CCB25, #256CCB
Split complementary#25CB31, #25BFCB
Tetradic#BFCB25, #25CB84, #3125CB
Tints, shades & saturation
Channel breakdown
R203
G37
B108
Red203 (79.6%)
Green37 (14.5%)
Blue108 (42.4%)
Hue334.34°
Saturation (HSL)69.17%
Lightness47.06%
Dominant channelRed
Hex per channelR CB · G 25 · B 6C
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Harmonies
Similar named colours
Also reads as
CB256C (chemical formula)
- Formula
- 2,791.382 g/mol
- 258 atoms
CB256C has a molar mass of 2,791.382 g/mol, made up of 258 atoms across 2 elements: 2 × C, 256 × B.
Molar mass
Molar mass2,791.382 g/mol
Total atoms per molecule258
Distinct elements2
Mass of one molecule4.6351989 × 10^-21 g
Molecules per gram2.1574047 × 10^20
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
C0.9%
B99.1%
Carbon (C × 2)24.022 g/mol, 0.861%
Boron (B × 256)2,767.36 g/mol, 99.139%
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