Recognised as Colour
#AC263B
- #AC263B
- Red
- Dark
- Nearest: Brown
#AC263B is a red with RGB values 172, 38, 59 and HSL 351°, 64%, 41%. It is a dark colour, so white text on it reaches 6.8:1 contrast (AA for normal text). The nearest named colour is Brown.
Colour values
#AC263B#AC263B
HEX#AC263B
RGBrgb(172, 38, 59)
RGB (0–1)0.6745, 0.149, 0.2314
RGB percentages67.5%, 14.9%, 23.1%
HSLhsl(350.6, 63.8%, 41.2%)
HSV / HSBhsv(350.6, 77.9%, 67.5%)
CMYK0%, 77.9%, 65.7%, 32.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,281,979
CSS custom property--colour: #AC263B;
Brightness & contrast
Relative luminance0.10473WCAG 2.x, 0 is black and 1 is white
Perceived brightness100.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.79:1
Contrast with white6.79:1WCAG normal text: AA
Contrast with black3.09:1WCAG normal text: Fail
Greyscale equivalent#444444
Inverted#53D9C4
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.79:1WCAG large text: AAA
Contrast with black, large text3.09:1WCAG large text: AA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#26AC97
Analogous#AC267E, #AC5426
Triadic#3BAC26, #263BAC
Split complementary#26AC54, #267EAC
Tetradic#7EAC26, #26AC97, #5426AC
Tints, shades & saturation
Channel breakdown
R172
G38
B59
Red172 (67.5%)
Green38 (14.9%)
Blue59 (23.1%)
Hue350.6°
Saturation (HSL)63.81%
Lightness41.18%
Dominant channelRed
Hex per channelR AC · G 26 · B 3B
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Also reads as
Ac263B (chemical formula)
- Formula
- 59,711.81 g/mol
- 264 atoms
Ac263B has a molar mass of 59,711.81 g/mol, made up of 264 atoms across 2 elements: 263 × Ac, 1 × B.
Molar mass
Molar mass59,711.81 g/mol
Total atoms per molecule264
Distinct elements2
Mass of one molecule9.9153793 × 10^-20 g
Molecules per gram1.0085343 × 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
Ac100%
B0%
Actinium (Ac × 263)59,701 g/mol, 99.982%
Boron (B)10.81 g/mol, 0.018%
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