Recognised as Colour
#CB2135
- #CB2135
- Red
- Dark
- Nearest: Crimson
#CB2135 is a red with RGB values 203, 33, 53 and HSL 353°, 72%, 46%. It is a dark colour, so white text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Crimson.
Colour values
#CB2135#CB2135
HEX#CB2135
RGBrgb(203, 33, 53)
RGB (0–1)0.7961, 0.1294, 0.2078
RGB percentages79.6%, 12.9%, 20.8%
HSLhsl(352.9, 72%, 46.3%)
HSV / HSBhsv(352.9, 83.7%, 79.6%)
CMYK0%, 83.7%, 73.9%, 20.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer13,312,309
CSS custom property--colour: #CB2135;
Brightness & contrast
Relative luminance0.14041WCAG 2.x, 0 is black and 1 is white
Perceived brightness115.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.51:1
Contrast with white5.51:1WCAG normal text: AA
Contrast with black3.81:1WCAG normal text: Fail
Greyscale equivalent#474747
Inverted#34DECA
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.51:1WCAG large text: AAA
Contrast with black, large text3.81:1WCAG large text: AA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#21CBB7
Analogous#CB218A, #CB6221
Triadic#35CB21, #2135CB
Split complementary#21CB62, #218ACB
Tetradic#8ACB21, #21CBB7, #6221CB
Tints, shades & saturation
Channel breakdown
R203
G33
B53
Red203 (79.6%)
Green33 (12.9%)
Blue53 (20.8%)
Hue352.94°
Saturation (HSL)72.03%
Lightness46.27%
Dominant channelRed
Hex per channelR CB · G 21 · B 35
Keep nerding
Every link below is a page Nerdulator can generate from what it already knows about this value.
Also reads as
CB2135 (chemical formula)
- Formula
- 23,091.361 g/mol
- 2136 atoms
CB2135 has a molar mass of 23,091.361 g/mol, made up of 2136 atoms across 2 elements: 1 × C, 2135 × B.
Molar mass
Molar mass23,091.361 g/mol
Total atoms per molecule2136
Distinct elements2
Mass of one molecule3.8344107 × 10^-20 g
Molecules per gram2.6079627 × 10^19
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
C0.1%
B99.9%
Carbon (C)12.011 g/mol, 0.052%
Boron (B × 2135)23,079.35 g/mol, 99.948%
Keep nerding
Every link below is a page Nerdulator can generate from what it already knows about this value.
Nerdulate something else
Nothing in mind? Surprise me · today’s page