Recognised as Colour
#CB4C47
- #CB4C47
- Red
- Dark
- Nearest: Indian red
#CB4C47 is a red with RGB values 203, 76, 71 and HSL 2°, 56%, 54%. It is a dark colour, so black text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Indian red.
Colour values
#CB4C47#CB4C47
HEX#CB4C47
RGBrgb(203, 76, 71)
RGB (0–1)0.7961, 0.298, 0.2784
RGB percentages79.6%, 29.8%, 27.8%
HSLhsl(2.3, 55.9%, 53.7%)
HSV / HSBhsv(2.3, 65%, 79.6%)
CMYK0%, 62.6%, 65%, 20.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer13,323,335
CSS custom property--colour: #CB4C47;
Brightness & contrast
Relative luminance0.1832WCAG 2.x, 0 is black and 1 is white
Perceived brightness127.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.66:1
Contrast with white4.5:1WCAG normal text: AA
Contrast with black4.66:1WCAG normal text: AA
Greyscale equivalent#676767
Inverted#34B3B8
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.5:1WCAG large text: AAA
Contrast with black, large text4.66:1WCAG large text: AAA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#47C6CB
Analogous#CB4784, #CB8E47
Triadic#47CB4C, #4C47CB
Split complementary#47CB8E, #4784CB
Tetradic#84CB47, #47C6CB, #8E47CB
Tints, shades & saturation
Channel breakdown
R203
G76
B71
Red203 (79.6%)
Green76 (29.8%)
Blue71 (27.8%)
Hue2.27°
Saturation (HSL)55.93%
Lightness53.73%
Dominant channelRed
Hex per channelR CB · G 4C · B 47
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Also reads as
CB4C47 (chemical formula)
- Formula
- 619.768 g/mol
- 52 atoms
CB4C47 has a molar mass of 619.768 g/mol, made up of 52 atoms across 2 elements: 48 × C, 4 × B.
Molar mass
Molar mass619.768 g/mol
Total atoms per molecule52
Distinct elements2
Mass of one molecule1.029149 × 10^-21 g
Molecules per gram9.7167662 × 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
C93%
B7%
Carbon (C × 48)576.528 g/mol, 93.023%
Boron (B × 4)43.24 g/mol, 6.977%
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